How to Connect LiPo Batteries in Parallel and Series - Detailed Examples

Ғылым және технология

Want to know how to avoid buying yet another battery format?
This rcvideoreviews.com video shows you how to connect batteries in series or in parallel to meet the demands of different RC Planes. Using these techniques, you can buy fewer batteries and fly a wider array of RC Planes requiring a wider range of power and/or capacity using batteries you already have.

Пікірлер: 185

  • @RCVideoReviews
    @RCVideoReviews3 жыл бұрын

    SERIES (Sorry, I'm a computer guy and I can't seem to stop saying Serial--electrical connections are in series)

  • @7x70.
    @7x70.3 жыл бұрын

    I can't tell how many times I went back to this video. It's the best video about the subject I ever found on youtube after a few days of search. Thanks for posting it. :)

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Wow, thank you! Very kind of you.

  • @charleshowell6442

    @charleshowell6442

    2 жыл бұрын

    Is it possible to run in series and in parallel to get longer run time????

  • @JasonJBaker_RC-Crawlers
    @JasonJBaker_RC-Crawlers4 жыл бұрын

    Clear, crisp, concise. Thanks for this video and all you do!

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Thank you Jason. I appreciate the feedback.

  • @tomheetderks9997
    @tomheetderks99974 жыл бұрын

    Very nice, this is the best and clearest explanation and demonstration anywhere! It was fun to watch even though I learned it 2 years ago, but wish this video had existed then.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Chris started asking questions and I thought, "If Chris is asking, other people may have the same questions" so we put a video together. I appreciate your feedback.

  • @christopherbell1768
    @christopherbell17684 жыл бұрын

    Just watched video again . Thanks John it really helped me understand the difference between the two.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Thanks for helping make it. You asked good questions that anybody new to parallel and series connections would want to know. It helps me level set on the amount of detail I need to include in videos. I'll be curious to see how you apply this knowledge now ;)

  • @alexbringhurst8881
    @alexbringhurst88814 ай бұрын

    Love your videos. I came across this video while working out in my head if I could use some of my smaller packs to get longer flight times in my Atomrc Dolphin. I now see that I can!

  • @RCVideoReviews

    @RCVideoReviews

    4 ай бұрын

    Glad you like them! Glad to help too.

  • @tomurkas
    @tomurkas3 жыл бұрын

    Super simple and clear explanation! Exactly what I was looking for . Thanks!

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    You're welcome!

  • @Bellakelpie
    @Bellakelpie2 жыл бұрын

    Great video. Explains things very clearly. Thanks for posting

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    You're welcome!

  • @supdog9289
    @supdog9289 Жыл бұрын

    Simply the best and clearest explanation and demonstration. Love all of your videos!! Thank you for sharing your expert advice and knowledge with all of us. You give us the confidence and knowledge to guide us safely in the hobby!! Gratefully, Sup Dog

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    Thanks much!

  • @tunaflights7258
    @tunaflights72583 жыл бұрын

    Excellent video! Exactly what I needed. Thank you

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Great to hear! You're welcome.

  • @Soilhalo77
    @Soilhalo773 жыл бұрын

    Best explanation I’ve found on KZread 👍👍👍👍👍👍👍😁😁😁😁 When I got my 1st 6s rc car the hobby shop connected my negative from 1 to the the Positive on the other creating 1 battery I recently bought a new RC and got crap from the new hobby shop I use because I was connecting them directly rather than using the XT90 with the xtra wire running from the neg of 1 to the pos of other I then saw other videos saying that that xtra wire was just a waste of time as it’s just adding another connection to your power supply so I went back to the bullet connection system but as I have 200c discharge batteries I swapped to 6mm bullets from 3( maybe 4)mm to give the best power flow possible I’ve found that by switching back to my original system and using the bigger connectors that the power delivery is smoother, less jittery I hope I’m making sense here as I often find putting this stuff into words difficult! I would love to hear your thoughts on this if you have the time , if not thanks for making such an easy to understand video

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Wow, thanks!

  • @markknowles6660
    @markknowles66606 ай бұрын

    Great demonstrative explanation, appreciated. Very good AV recording quality also. Keep up the great 'to the point' content. Sub for your effort.

  • @RCVideoReviews

    @RCVideoReviews

    6 ай бұрын

    Welcome to the channel!

  • @mariopiodiocena5332
    @mariopiodiocena53322 жыл бұрын

    thanks I easily understand how you teach every single details. i learn alot

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    Glad to hear that!

  • @franciscourena5636
    @franciscourena56363 жыл бұрын

    Outstanding and great presentation ****MY RESPECT FOR A GREAT JOB

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Thanks for watching. Appreciate the comment too.

  • @lipinghe40
    @lipinghe404 жыл бұрын

    Wow! I learned so much from your video. Subscribed. Thank you and God bless.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Awesome! Thank you! I'm glad it helped you.

  • @RasikRot
    @RasikRot Жыл бұрын

    Very helpful video sir....thank you👍🏻👌

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    Most welcome

  • @rimcroy
    @rimcroy4 жыл бұрын

    Good stuff, Very informative.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Thanks Roy. Hope you can find ways to apply the info.

  • @Noirfury
    @Noirfury2 жыл бұрын

    Ty so very much. You really taught me something. Now I am thinking about manipulating battery wiring in order to get a desired result. Like using 4 smaller batteries to provide more power compared to a single battery of the same "capacity". I think I got it. So wiring in parallel would be best if you have two smaller batteries and you want to have more capacity as long as they are the same wattage. Series is if you have two larger batteries but want more power as long as they are the exact capacity. You will burn out the smaller battery otherwise. If you want both you would first take 4 batteries and have 2 sets both in series and then connect them in parallel. Following the rules of course. Then there is the motor capacity and shorter longevity. Ty again....When I was young if you were a trades teacher I would have taken those classes. Hell I am older and would now if you were teaching me.

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    "as long as they are the same wattage" I think you mean voltage. Yes, connect in parallel with the same voltage and you get more capacity. Parallel = Same voltage/more capacity. Series = Combined voltage/same capacity.

  • @davidknutz3314
    @davidknutz33144 жыл бұрын

    Great video! I hope my care package got to you safely.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Thanks Dave. Yes, I got it. Sent you an e-mail. Very nice of you--looking forward to getting that off the ground. ;)

  • @Theoneofall1975
    @Theoneofall19754 жыл бұрын

    Nice video. Well done, nice explanation. Phisics that´s all

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Thanks for commenting.

  • @johnstahl1046
    @johnstahl10464 жыл бұрын

    Very helpful! Reminded me of undergraduate EE classes. Well done. U apparently have an opinion about parallel charging. Someday u need to tell me about it. So parallel makes u go further/longer and series makes u go faster/stronger.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Parallel charging gets religious for some people. In fact Battery discussions in general are largely anecdotal. The amount of magic, mystery, and conjecture in the RC hobby is astonishing to me, but when it comes to batteries, the level of [incorrect] subjectivity rises to mind blowing levels. That is why as a rule I try and use video evidence. When it comes to these controversial topics the answer must simply be "show me", don't talk about it, "show me". If I've done the homework, lived with a process, and know the outcome--as with parallel charging--from first hand experience, you're going to have to "show me" why I'm wrong because there are those who insist they know what they're talking about and persist in the dogmatic passing of bad information. I LOVE learning new stuff. What I don't like is people trying to pass flat wrong information along as gospel. Want to test this? Go ask 3 random people at the field what the "C" numbers on LiPo batteries mean, then go learn about it on your own. How close were they? How many said, "you know, I really don't know" Another one: Ask how to "trim" throttle on an electric plane [Hint: You don't, you calibrate the ESC]. This should give you a big clue as to why so many times in my videos I say, "let me just show you" and is the underlying reason for why this channel exists.

  • @Noirfury

    @Noirfury

    2 жыл бұрын

    That's what I came here to find out.

  • @sofeygoree4263
    @sofeygoree4263 Жыл бұрын

    I just ran into this video 👍🏽👍🏽,I have a question, I have 3 4s lipos that I just want to run for more time on my max 5,do I hook one up to the max 5, then with the other 2 with a parallel spliter, then to the max5? For more gas in the tank,all the batteries are the same mah.thanks for any advice.

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    Parallel adds capacity, series adds voltage. So if you want longer runtime, you connect them in parallel.

  • @ratchet_hoe
    @ratchet_hoe3 жыл бұрын

    what a great video.

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Thank you!

  • @abdulhaniff4860
    @abdulhaniff48603 жыл бұрын

    I learn alot from this video.. thanks bro

  • @abdulhaniff4860

    @abdulhaniff4860

    3 жыл бұрын

    And already share your video to my rc group...

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Thank you. Appreciate that.

  • @funKdatFPV
    @funKdatFPV2 жыл бұрын

    I assume I can use that serial connector to plug in 2 6s batteries(both with XT90 plugs) and then to a PDB on a Xclass build?

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    As long as your board can take 25v and provide the correct downstream voltage to your connected accessories.

  • @uksewingmachineservice7030
    @uksewingmachineservice70304 жыл бұрын

    Wooow brilliant information about that mate nice one don 🤠🇬🇧👍👍💜💜

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Thanks! Appreciate the feedback. Glad you liked it.

  • @lanimaldugeek
    @lanimaldugeek3 жыл бұрын

    Hello, thanks for your video, it s possible to build a battery serie parrallele 72v 100ah with out bms ?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Can I assume when you say BMS that you're referring to a charge circuit that balance charges your batteries? If the answer to that question is "yes", then my answer is I would not do that. When you start putting batteries in series, you need to balance charge them.

  • @jonathan1976xxx
    @jonathan1976xxx3 жыл бұрын

    Thank you just what I needed

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Awesome! You're welcome.

  • @paulmiller8522
    @paulmiller85223 жыл бұрын

    great video great advice

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Thank you!

  • @dradden1556
    @dradden155620 күн бұрын

    Very good 👍 info. Thanks

  • @RCVideoReviews

    @RCVideoReviews

    20 күн бұрын

    Glad it was helpful!

  • @Tiltrotor86
    @Tiltrotor869 ай бұрын

    Thanks man, nice video ! Questions I have, is it possible to mix both up to one output ? Looking to power a large warbird with 14S/20 000 mAh, can I hook four 7s packs, two sets of 7s/10 000 mAh in \\ to get 20 mAh and then these, in series’ to reach 14s up to the ESC ? Is there any considerations to be taken or things to be aware of ? Thanks

  • @RCVideoReviews

    @RCVideoReviews

    9 ай бұрын

    Yup, you can. The considerations are that in series if one battery is soft (high IR/degraded capacity) and the other is in good condition, the soft battery can be killed while in series as there is only one path for current. So the stronger battery will keep going even if the softer battery is dying. This is true for any series connection, so my suggestion would be to make sure your packs are all in roughly the same condition by evaluating their mAh capacity and IR. Don't push too hard early on regarding your floor voltage. And measure/measure/measure while you dial up the flight time to make sure your batteries are all able to provide sufficient power to your combo.

  • @Tiltrotor86

    @Tiltrotor86

    9 ай бұрын

    @@RCVideoReviews thanks a lot

  • @fpvkauai
    @fpvkauai3 жыл бұрын

    Finally found the video ! All the videos that pop up is parallel charging batteries !

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Well I'm glad you found it. Thanks for watching.

  • @SuperMagnum2011
    @SuperMagnum2011 Жыл бұрын

    Thank you very much.👍

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    You're very welcome.

  • @alvandergoot7237
    @alvandergoot72373 жыл бұрын

    Hey John when you connect the two individual batteries packs in series do you parallel charge them first and does that balance charge them to each other or can you also just balance charge the 2 individual packs and connect them. Im pretty sure either way is okay just want to check with you first. Cheers

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    It doesn't matter how you charge them, but when you connect in series you want them both charged. They should have similar IR too.

  • @alvandergoot7237

    @alvandergoot7237

    3 жыл бұрын

    Thanks John as usual your info and videos are top drawer. Cheers

  • @michaelmanley7636
    @michaelmanley76363 жыл бұрын

    If I added a second battery and connected it in parallel should my current charger charge them equally and would I need to match their level before connected or should my charger do everything?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Never connect two batteries in parallel without ensuring cell to cell voltage is close. I aim for within 0.02v That said, if you DO connect batteries in parallel, the one with higher voltage will try to charge the one with lower voltage until they reach equilibrium.

  • @j-1lokes294
    @j-1lokes2944 жыл бұрын

    Very nice video.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    Thank you very much!

  • @whisperingblues9887
    @whisperingblues98873 жыл бұрын

    Good video man great advice .

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Awesome! Glad it helped.

  • @whisperingblues9887

    @whisperingblues9887

    3 жыл бұрын

    Great to see someone actually giving out the correct information great job.

  • @MegaJeetn
    @MegaJeetn2 жыл бұрын

    Does C-rating matter?

  • @roguewaves3336
    @roguewaves33362 жыл бұрын

    I have a 7.4 V 850mAh and a 7.4 V 500mAh in both of them appear to be to sell. How should I connect them. This is for a 1/18 scale RC truck that I built.

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    It depends on what you're trying to do. If you want to increase capacity, you connect them in parallel. If you want to increase voltage you connect them in series. Since these packs are different sizes (850mah vs 500mah) you should not connect them in series because the smaller battery will be drained faster than the larger battery which will damage it. So the only thing you can do in this case is connect them in parallel. I covered these rules in the video.

  • @tonysmith4142
    @tonysmith41424 ай бұрын

    So it would be ok to connect 2 4 cell 2200mah together to get an 8 cell 2200mah 'pack', could I then do the same with another pair, to get 2 x 8cell 'packs' then connect them in parallel to get a 440mah 8cell pack?

  • @RCVideoReviews

    @RCVideoReviews

    4 ай бұрын

    I think you mean 4400 and yes.

  • @DavidJohnson-rb2wi
    @DavidJohnson-rb2wi4 жыл бұрын

    How can you hook up 1 4s battery if u have 2 battery hookups?

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    I don’t understand the question.

  • @mariopiodiocena5332
    @mariopiodiocena53322 жыл бұрын

    i just wanna ask something (in series) how abou i connect 2200mah 2s 7.4v + 2200mah 3s 11v is = 2200mah 5s 18.4v?

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    Yes. In series you add the voltage.

  • @advancetech7479
    @advancetech74792 жыл бұрын

    Can we connect ** two different C rated 3s *battery in parallel (suppose one battery is 2200mah 50c another one 1000mah 40c ? I will use it in 12v spot welding which need 150amp .. Pls reply

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    You can connect different C-rated batteries together, but the circuit doesn't know anything about C ratings so if you load 150a you're going to get 75 from each cell. That is beyond the rating of your 1000mah 40c which is only 40a, so you will probably damage it.

  • @JesusGamayon
    @JesusGamayon3 жыл бұрын

    Thank you very much!

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    You're welcome!

  • @GiantAntCowboy
    @GiantAntCowboy2 жыл бұрын

    Question: Let’s say you have two 4s 4000mAh Li-Ion packs with a max 45A current output, and you hook them up in parallel, this would give you 8000mAh, but would the max current output also double to 90A? Just trying for confirm, cheers!

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    Yes. When you connect cells in parallel, capacity is additive as power is drawn simultaneously from the cells in parallel.

  • @GiantAntCowboy

    @GiantAntCowboy

    2 жыл бұрын

    @@RCVideoReviews ok, I was pretty sure that was the case, but wanted to confirm. That’s a pretty big benefit when using low discharge cells like Li-Ion, or low C LiPos. Thanks for the great video and info, cheers!

  • @garydaniel8096
    @garydaniel80963 жыл бұрын

    I just learned aaaaalot!

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Awesome!

  • @Badjuju
    @Badjuju Жыл бұрын

    Forgot to mention that by running parallel, you are also doubling the current which is a big thing to leave out. Could easily smoke someones esc.

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    Incorrect. Current is the result of load. Connecting cells in parallel does not change load but it does combine the capacity of the cells connected and ALLOWS more current delivery capacity. Merely connecting cells in parallel does not change the current. Current draw depends on the load, not the source.

  • @christophershupert3611
    @christophershupert36113 жыл бұрын

    Nice! Thanks a ton! Liked and sub

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Thanks for the sub and welcome to the channel.

  • @RJG7819
    @RJG78198 ай бұрын

    This maybe a dumb question, in parallel, the C rating, does it add up or stay the same?

  • @RCVideoReviews

    @RCVideoReviews

    8 ай бұрын

    C rating doesn't change. Not a dumb question. Good to think about these things...

  • @fjdjzfhrsut8063
    @fjdjzfhrsut80633 жыл бұрын

    Alright what I don't get is... Let's say we have 2 cell/batteries whatever, that we need to connect in series. Both have the same volt but different mAh (1000 mAh and 1200 mAh) which should be a big no no as you mentioned. But what I was wondering was, wouldn't the 1.2Ah cell just start charging the 1Ah cell when the 1Ah cell runs dry? I thought that's how it worked. ________________________________________________________________________ Can you please tell me if I can use my 2S 3000 mAh lipo and connect it with my 1S 1000 mAh in series to get a 3S lipo if I only fly for a minute of PID testing without crossing the threshold of 900mAh. Always using my lowest capacity battery as the benchmark and never going over its limit?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    If there is no load yes, the higher voltage cell would charge the lower voltage cell, but under load, the current will flow from both damaging the lower voltage cell. Remember, you can only go to 3.3v before causing permanent damage. You can connect a 2s 3000 to a 1s 1000 as long as the 1s 1000 doesn't go below 3.3v.

  • @hersheykiss9500
    @hersheykiss9500 Жыл бұрын

    any issue with making a 14s from 3 packs? 6+4+4 or 6+6+2

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    Sure. Keep the MAH capacity the same...

  • @hersheykiss9500

    @hersheykiss9500

    Жыл бұрын

    ​@@RCVideoReviews ok thanks. because i have curmudgeons telling me the resistance will be so high that i should just use 12s... not sure how that makes sense, but ok. they keep saying "i have lots of experience! just listen to me!"

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    They're wrong. If you connect your devices in series properly it's no different than using a 12s pack. Just nonsense. My 85" planes and 700 helis all use 2x6s. See the numerous videos on my channel showing those craft in flight.

  • @eirenwhelan3312
    @eirenwhelan33124 жыл бұрын

    Hi, do I need to be careful with different discharge rates and / or internal resistance when combining in series and parallel? Im guessing this is why you are using the same brand of battery as they’re the same specs? Thanks, much appreciated.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    They do not have to be identical. The farther apart IR the less effective capacity. The batteries will always follow ohms law so they discharge to load which is why in parallel they will discharge evenly. Off load you will see the lower IR pack end with higher voltage than the higher IR pack. In my experience, once packs start to get puffy (flex on the sides when squeezed), the IR is higher than new packs. Once IR hits about 5 as measured by my iCharger 306b, I stop flying the pack. So when I fly with packs in parallel or series, you are correct - I try to keep similarly spec'd packs working together. i.e. I try to keep packs with average IR of 1 together and packs with average IR of 3 together.

  • @eirenwhelan3312

    @eirenwhelan3312

    4 жыл бұрын

    RC Video Reviews thanks for the info, really helpful. I don’t have any instruments to measure IR so I’ll just try get batteries with similar IR when I buy them. Is there any disadvantage to building a 3+ parallel battery group, when compared to just buying one battery of the required capacity? It is sometimes cheaper to buy batteries that way, although it seems unintuitive. Thanks again

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    @Eiren Whelan I believe all new LiPos come with an IR of 1. What happens after you start using them is a function of heat/discharge rates/discharge voltage/cycles and any number of other factors. I frequently look for series or parallel options with smaller packs to give me larger packs if it helps me avoid buying single use larger packs. The only exception I've made to that in recent years is for my BAe Hawk. For that jet, I sprung for some 6s5000 batteries.

  • @eirenwhelan3312

    @eirenwhelan3312

    4 жыл бұрын

    RC Video Reviews thank you, great info

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    @@eirenwhelan3312 You're welcome. Good luck with your parallel/series options.

  • @fearles4life
    @fearles4life3 жыл бұрын

    Hello mate, I just by mistake connected esc with lipo in wrong connection now my battery 1 cell is to 0 volts I was using 3 cell luckily my esc is still fine can you please suggest what shd i do

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    You probably burned or shorted a balance lead or a series connector between cells. Since you're asking me this question, I'm going to assume you do not have advanced electrical troubleshooting skills. Therefore, you should probably dispose of the battery.

  • @fearles4life

    @fearles4life

    3 жыл бұрын

    @@RCVideoReviews thanks for the reply yes you are right cos just check 2 sell seems work perfect only the 3 rd 1 is showing 0 volt

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    It's probably just a burned balance lead. Those are the smallest gauge wires on the battery so in a short they're probably the first to go.

  • @neilglick7027
    @neilglick70273 жыл бұрын

    In your Serial and Parallel examples you haven't mentioned cell balance. Perhaps it's obvious to those more experienced but must all batteries (as 'usual' for lipo) have their cells in balance?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Anytime batteries are used in parallel they should be in balance because they'll all be drawn from in parallel. It's less critical in series because the voltage is additive; however, in series one cell can be drained before others if its capacity (MAH) is lower. So for that reason, it's also smart to start with cells in balance for series connections as well. General rules are: Parallel - Same voltage, different MAH ok. MAH is additive. Series - Same MAH, different voltage ok. Voltage is additive.

  • @rielcatubigan417
    @rielcatubigan417 Жыл бұрын

    good day sir, how about the C rates in series? its ok if the C rates are not same? exemplE 3s 2.2mah 45c and 2.2mah 30c, hope you notice me.tnx

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    As long as you don’t exceed 66amps you’ll probably be ok. Be aware the higher c rated cell will likely have less voltage sag.

  • @rielcatubigan417

    @rielcatubigan417

    Жыл бұрын

    thanks for the knowledge sir, but it's really better to just be equal. mah and c rates, to avoid misfortune especially for a newbie like me

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    Of course it's better to keep the c-rating the same, but that isn't the question you asked is it?

  • @rielcatubigan417

    @rielcatubigan417

    Жыл бұрын

    I'm ok sir, I'll just buy another 3s battery with the same spec. so I don't get into trouble, hehe.. btw sir how about charging?

  • @oldpopmike
    @oldpopmike Жыл бұрын

    Thanks for the video, though I was always taught never to put these in parallel without a diode in series with each output. To prevent one battery charging the other battery. Or if one battery dies, it wouldn’t affect the other battery. But fair enough, if they have both the same voltage it’s ok. I’d use two diodes though … Schottky type with low voltage drop and current rating exceeding the maximum expected. Cheers.

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    I've been charging and discharging batteries in parallel for years. I have planes that use parallel batteries in flight. Higher voltage means more motive force, so it seeks out lower voltage and current will travel to it. This is why we keep the voltage within a few 100th's of a volt for parallel connections. That only really matters when the balance leads are connected. When the mains are connected, the error can be a little larger. In any case, a diode just isn't necessary if the voltage is close. But, you're money, your hobby, do whatever makes you happy.

  • @jonandkariwalter2074
    @jonandkariwalter20743 жыл бұрын

    I want to use a series parallel configuration to run my minkota trolling motor on my kayak with 12 2 S 7.4 5200mah Batts 2 Batts in series for 14.8 volts then Parrelell on every pair of 6 that have been series conected any issues? I am currently using a group 24 marine deep cycle 12 volt batterie let's just say either I have to lose 20 lbs or the batterie does .I'm still liking my food

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    How will you balance all of that? There's nothing electrically wrong with what you're suggesting. You're basically making 6 4s packs and connecting them in parallel. Here's what I would check if I were you: 1) Make sure IR is close on all packs. 2) Keep them balanced. 3) Close in their cycle count. 4) Same discharge C rating.

  • @jonandkariwalter2074

    @jonandkariwalter2074

    3 жыл бұрын

    @@RCVideoReviews thank for the feedback my thought was to have each lipo pack on a pre wired board with plug connectors so I could pull each pack and balance charge individually then replace modules when and where I need . Half my battery are 50c and the other is 80c is that going to be trouble?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    @@jonandkariwalter2074 You'll find that higher C packs will hold their voltage under load more evenly than lower C packs. I've never really considered what that would be in practice for Series or Parallel, but I would expect to see some disparity like at the end of the day your lower C packs drain faster than your higher C packs so you wind up not getting the full charge capacity before hitting a cutoff voltage. --Again just spitballing here, but my preference would be to use packs with the same C rating on discharge. As long as you have a strategy to balance charge, you're good there.

  • @jonandkariwalter2074

    @jonandkariwalter2074

    3 жыл бұрын

    @@RCVideoReviews OK thanks I'm just learning about lipo and the rc batterie tech your channel is probably the best I've found great info god bless

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    @@jonandkariwalter2074 Thanks for the kind words. Good luck with your project.

  • @putrashaqil7255
    @putrashaqil72552 жыл бұрын

    Can you combine a 60v battery and a 12v battery to make 72v. can you charge them together ??

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    You can connect them in series. Follow the rules I laid out in the video.

  • @putrashaqil7255

    @putrashaqil7255

    2 жыл бұрын

    @@RCVideoReviews thanks

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    You’re welcome.

  • @putrashaqil7255

    @putrashaqil7255

    2 жыл бұрын

    Can still use 60v charger or 72v charger to charge the battery

  • @BrainDeadEngineering
    @BrainDeadEngineering2 жыл бұрын

    Series. I been trying alot but one battery gets life sucked out faster. Loosing to many new bats. My long reach plane came back with a lipo at 2.77 volts, other was 3.85 ( If some one comes up with a balancing circuit to install between them they get rich !

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    Heli guys fly with series all the time. Do you keep matched pairs? Same manufacturer, same age, same model etc..? Seems like maybe an IR problem or resistance introduced in your series connection?

  • @niels6186
    @niels61862 жыл бұрын

    Does the age of the battery matter in parallel

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    In parallel, IR is cumulative. So if you have a pack with high IR it will 'drag down' the performance of a pack in better condition. Personally, I try to keep packs in similar stages of performance together.

  • @franciscourena5636
    @franciscourena56363 жыл бұрын

    Great job

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Thank you :)

  • @franciscourena5636

    @franciscourena5636

    3 жыл бұрын

    @@RCVideoReviews I bought an UAV plane. Now I just learned from you that I can increase the range by adding an additional battery and make it parallel to the existing one. " more gasoline in the tank "

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    @@franciscourena5636 You got it. Parallel is more gas in the tank. Just watch your weight. Adding batteries is normally not a 1:1 proposition. i.e. Double battery doesn't mean double flight time because your plane is now carrying more weight.

  • @franciscourena5636

    @franciscourena5636

    3 жыл бұрын

    @@RCVideoReviews If I add another small battery ( same voltage) how will not be able to increases the flight duration?

  • @drecoracing
    @drecoracing3 жыл бұрын

    Who disliked this video? Crystal clear What are those yellow connections called on the end of the lipo batteries?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    XT60s? Thanks for the comment.

  • @dharmakissoon
    @dharmakissoon3 жыл бұрын

    i parallel charge lipo with lead no prob ,gotta be around the same volts though

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Yup...keep those volts close.

  • @airhammer6203
    @airhammer62034 жыл бұрын

    Nice video, good stuff! I was always wondering if anyone made an adapter to hook up two ESC's to one battery?? AirHammer out!!

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    All my twin motor planes have two ESCs connected to one battery including the Dynam planes.

  • @airhammer6203

    @airhammer6203

    4 жыл бұрын

    @@RCVideoReviews Oh yeah, sure.😀 I just wondered if anyone made an adapter for this. One that goes in the right direction. 1Male to 2 Female. EC3, Xt60........ I don't recall seeing one anywhere.

  • @RCVideoReviews

    @RCVideoReviews

    4 жыл бұрын

    @@airhammer6203 That I don't know. Wouldn't be hard to make though. Amazon sells XT60 connectors pretty cheaply if you want to make one. I make my own parallel connectors.

  • @guahanbassoutlaw5081
    @guahanbassoutlaw50813 жыл бұрын

    I'm subbing only cuz dudes a hot head 🤣 you can tell he's tired of people trying to argue with insufficient knowledge on the topic lol. Comments must be fun here 🤭

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    You're not wrong about being tired of arguing with the ill informed.

  • @ChrisPlumleeTV
    @ChrisPlumleeTV11 ай бұрын

    7:07 it's just physics, it's not John making stuff up 😂

  • @RCVideoReviews

    @RCVideoReviews

    11 ай бұрын

    :)

  • @atowngrimreaper936
    @atowngrimreaper9363 жыл бұрын

    Can I have 2 batteries In series both 36v 10ah and then take another 36v 20 ah battery and run that parallel then it will be 72 v 30 ah battery is that correct?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    "Can I have 2 batteries In series both 36v 10ah" 2 batteries in series that are both 36v means you will have a 72v battery. "and then take another 36v 20 ah battery and run that parallel" Absolutely do not do this. You'll wind up with sparks and fire because what you just said you want is to connect a 36v cell to a 72v cell in parallel. You do not mismatch voltage in parallel. You have three batteries all 36v. You can connect them all in parallel and the load will drain all three evenly. DO NOT put two 36v cells in series and then connect a third 36v in parallel.

  • @atowngrimreaper936

    @atowngrimreaper936

    3 жыл бұрын

    @@RCVideoReviews I think I mismatched the words Parellel and series. I got 2 36 v 10 ah batteries I connected so it’s 72 v 10 ah if I bought another 36 v 20 ah battery and connected now to positive to positive and negative to negative to will it become a 72 volt 30 ah I really appreciate your info

  • @atowngrimreaper936

    @atowngrimreaper936

    3 жыл бұрын

    @@RCVideoReviews so I believe your saying do not do that ??

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    No. STOP! DO NOT CONNECT a 72v battery in parallel to a 36v battery. You really need to study this more. PARALLEL = + to + and - to -. VOLTAGE should be the same. SERIES = + to -. VOLTAGE IS ADDITIVE Absolutely do not connect a 36v cell to a 72v cell in parallel.

  • @atowngrimreaper936

    @atowngrimreaper936

    3 жыл бұрын

    @@RCVideoReviews ok so how can increase more amp hours ?

  • @mariopiodiocena5332
    @mariopiodiocena53322 жыл бұрын

    thankyou

  • @RCVideoReviews

    @RCVideoReviews

    2 жыл бұрын

    You're welcome!

  • @MrOff-KiltTa-Fukk-U
    @MrOff-KiltTa-Fukk-U3 жыл бұрын

    Why would parallel charging cause problems ? I can tell you for fact it works and it's safe . My question is : I have a 1/10 scale RC truck and I accidently ordered the wrong 3s battery packs . They are for a 1/18 scale or airplane ....right voltage wrong size . Running a pack that small would over heat the battery cells so I wanted to run both 3s packs parallel . Can I do that ?

  • @RCVideoReviews

    @RCVideoReviews

    3 жыл бұрын

    Parallel charging is great. I do it all the time, and I argue against people who come here and say it's unsafe. It can cause problems if you connect packs of dissimilar voltages together. Here's how I decide if I run packs in parallel: 1) Same voltage 2) Similar IR Cell to Cell and Pack to Pack 3) Same discharge C rating If those conditions are met, I will charge and discharge them in parallel any day of the week.

  • @RC4ever
    @RC4ever10 ай бұрын

    How about a couple of lipos in cereal connection? ROFL, sorry, I couldn't help myself, please forgive me... 😂

  • @RCVideoReviews

    @RCVideoReviews

    10 ай бұрын

    I think like a network guy with serial data ports et. al. Hard to make the transition sometimes.

  • @RC4ever

    @RC4ever

    10 ай бұрын

    @@RCVideoReviews oh, serial is perfectly fine for me! It's just that at some point in the video I heard it as 'cereal' in my brain and it made me laugh! :p Thought I'd share, in the hopes of making someone else chuckle! ^^

  • @michaelrichardson4884
    @michaelrichardson48845 ай бұрын

    Your not on a Parallel with me! Only kidding seems great info thanks

  • @RCVideoReviews

    @RCVideoReviews

    5 ай бұрын

    Next time! :)

  • @hersheykiss9500
    @hersheykiss9500 Жыл бұрын

    super serial

  • @RCVideoReviews

    @RCVideoReviews

    Жыл бұрын

    practical parallel

  • @guahanbassoutlaw5081
    @guahanbassoutlaw50813 жыл бұрын

    @4:16 🤦🏾‍♂️ sigh*.......smh....

  • @etaunknown4024
    @etaunknown40244 ай бұрын

    Series*, everything else is spot on tho lol.

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