I use a 10000 mah RC 3s lipo with this controller to operate 2 night lights---Charges with a 30 watt solar panel to 12.7 drains down to 10.9 and the cell stay balanced with no bms. Thanks for this video.3 months and no balance issues.

Hello friend! The parameter you are changing is not the charging voltage. It's the "float charge" voltage and that means the controller will just trickle charge small amounts of current at 12.7 volts, AFTER the bulk and absorption phase. After the battery reaches finish the absorption phase at 14.6 volts or whatever voltage depending on the battery type, (B1, B2, B3 in the manual its the menu number 6) it enters the float voltage charge which actually is for maintaining the battery at full charge without the battery being burned!

@aznative_

3 жыл бұрын

I believe there are different versions of this controller that look identical but function differently. When I change that parameter on my controller it's definitely not setting a float mode. It's a disconnect.

@svakestor7219

3 жыл бұрын

@@aznative_ My previous comment was an expectation of what the charger should do. But after installing it, what it does is that it just stops charging at 14.5V. The float mode doesn't work and nothing changes if i set it to 13.4 or 13.8V

This is great info i wasn't even aware of that overcharging could be a problem, but you showed that it is so minor that it's not a issue.. thanks (y)

@vuaeco

8 жыл бұрын

Overcharging is in fact a problem with these Li ion batteries. But at 4.23V instead of 4.20V, it is within the tolerances acceptable for these batteries. One time I tried to charge these batteries with a 5.5V solar panel and it just destroyed them in a couple days. The batteries got overcharged and vented out all of their internal solvents (they all have vents on the top) and rendered them useless.

Very nice video on this controller and also your other video on the controllers with lead-acid batteries. I think it would be advisable to use a 3S BMS for 18650's as you have done here in the 12.6V case. Boards with balance capability are available from sites like Banggood for around $5 and they appear to work well. They have over and under protection and over current as well as balance and they are made to be used with generic power input so they should work just fine with this charge controller. Apparently this controller does not fully cut the charge when current falls below a predefined level. I plan to program an arduino nano to do that using a 5V relay and power it through one of the usb ports on the controller. Thanks again for your videos!

Thanks , ur technique helped me make a few holes on my batteries. Found out the hard way .ever want to charge a li ion get a balance charger bms

Brilliant video congratulations !

hello, i bought one of these 30A labeled MOHOO. In the manual in technical parameters indicate 30A charge discharge current but after advices "when the controller is connected to the 12V battery, the output of the maximum load is less than 120W and 240W when connected to 24V battery". Can anyone tell me how much load can i use, because less than 120W y less than 10A and is rated current 30A.

Upon watching this I purchased one of these to charge a bank of 30, reclaimed 18450 batteries, 3 in series 9.3v Min and 12.6V Max with a Renogy 50W solar panel. One thing I added was a battery management circuit/cell balancer and a fuse block with 20amp fuse. I’ve been using this setup and it works like a charm. I don’t believe the battery management circuit is absolutely necessary but highly recommended. I’ve charged this for dozens of cycles with absolutely no problems. I heard these charge controllers are pulse width modulation chargers meant for lead acid but this does not seem to cause any problems for lithium ion.

@iTowils

5 жыл бұрын

I'm trying to run the same setup but with a 10W solar panel. I was wondering what charge profile you are using on the controller? From reading the specifications, it says it has the capability to charge lead-acid, AGM, and GEL.

@kirigayakazuto3931

5 жыл бұрын

What kind of battery management circuit do you use?

Love the videos! awesome go kart I made a little fishing boat in the same way. Solar panel charges my 25p 4s li ion pack works like a charm! Trolling motors destroy regular batteries Li ion is the way to go the can take the abuse!

Don't you need to balance the cells though with some kind of lipo balancer?

most lead acid chargers may say 12 volts but they will actually bring the voltage up to around 14v. Sometimes even higher. Have you put a volt meter on the battery as its charging? just to see if is staying at the voltage you set it at.

Do I have to set the charge controller for an AGM or does it automatically

my foxnovo 4s charges my 18650 to 4.22, when I test cells with voltmeter they read 4.25. I havent notice any damage. But those who might have any problems with the slight overcharge can just attach a bms circuit to the battery pack as a safety feature.

@ABritInNY

6 жыл бұрын

jony joe Although higher than official spec cuttoff of 4.2v, the extra 0.05v to 4.25v is still ok (as you already know) and not dangerous per se. The problem is that it will DEFINITELY rob overall cycle life of the cell, yielding far less cycles over the life of the cell. By the same token, reducing to 4.15v (or 4.1 even better) will definitely increase the amount of cycles the cell can deliver at a cost of small amounts of capacity loss from not charging fully.

hello, in this controller it is possible to regulate the voltage for the batteries in the 4 load levels: Equalization, Float Charge, Stop Download, Reconnection Download? Can I regulate the maximum load voltage to 16.8v, floating load to 14.8v, discharge discharge to 12.0v and discharge reconnection to 13.8v?

Do you know if the Harbor Freight controller works the same way??? If so, can I make a 3S10P LiOn batt and use this controller to charge it???

Thanks for the video. Did you test if the charger can charge the battery and output to a load at the same time?

Without balance, you could over charge a single cell as they won't have the same voltage. You can put a diode on and get a 0.7 volt drop. But you can add volts from the minimum to make up the difference. Or you could get rid of the charge controller and use a buck converter. It would be less and you can control the current and voltage.

How about the load terminal?..it give output voltage to load terminal?

Purchase on EBay? What term can I used to search that particular item?

Cool....i have the same controller...what battery setting do you use for charging the 18650's... b1 , b2, b3, b4 ?....i use b1 for lead acid, ...but not sure on the 18650's...chhers. love the go cart..brilliant

Hello sir, suppose i use 3s bms to charge 3 cell battery pack, while charging the battery pack, at the same time can i run 12v device from output of controller? How many months or years your lithium battery survived

Is this work on laptop charger instead of solar panel?

I have that charger and the 24v 2ah Kobalt tool battery. On 6-12-2019 at 0725 hrs I programmed the charger to 25.3v and am starting out with 21.4v on the battery. Look for smoke on the horizon?

Where did you purchase the white ampmeter you have for your electric bike on the video for only $1-$2? Can that one measure 100amp?

@vuaeco

5 жыл бұрын

Which one? Is it in this video?

Did the charge controller turn on as soon as you plugged the battery into it? I just bought one and it doesn't turn on after i plug in the +/- battery ports. Wondering if its broke or im doing something wrong

@overlordone1246

6 жыл бұрын

josh hyma I have the same question. Did you find the answer?

@ronny1734

3 жыл бұрын

Guys dont buy this pos get your self a victron they are cheap and amazing

dose it charge lippo battery

Wen i remove the panel the battery fall down to 11.3 is it okay to see that

Amazing videos Vuaeco… Look I am design a solar panel/battery system… I thought that getting 18V solar cells to charge a 12v SLA battery would be smart… Ive also purchased a CMTD 20A solar controller. I am still waiting for the arrival and I have one doubt… If the solar panels provide more than 14,7 V as recommended charging Voltage in to the batteries, What will the solar controller do? Totally cut the inbound power from the panel as it will be higher that the max Voltage permitted or reduce to the Max of 14.7? Many Thanks

cool thanks

Hello.... and thankyou kindly for your video because i have just purchased one the same exspecting it to charge lipo cells.... your spot on with your maths and i was always tought that you take it to the lowest or highest values in resistors when messuring the capacitence etc.. just gota figure out wich setting to put it on now b1 b2 or b3 hahahaha decitions dicitions... stay kool bro. out. Payyyyyce.

Hi my friend I tried this, and charging a 3S until 12,7V, the PWM controller went on flutuation voltagem, but still puts A on the Battery and some cells went to 4,5V.

@vuaeco

4 жыл бұрын

These are made by so many different manufacturers. Make sure you check the max voltage on the controller when it's charging your battery. It shouldn't go over 12.7V. If it does then your charger has a problem.

@RREKO

4 жыл бұрын

@@vuaeco thanks for the advice, I will test mine to see if they Stop... I have 3 and one of them passed 12,7V is a little high, but if the Battery is balanced, not that much 0.03V, but now I made a 4S50P to prevent that from happening.

@bawagonwheels01

4 жыл бұрын

Same here. Using exact same setup as video. Just be careful that some cells may over voltage. For best setup also include a balancer to avoid over voltage. At maximum threshold of 12.6v S3 is not always reliable as there is very high risk of over charging and over heating the batteries leading to a shorter life span. Making a 16.8v S4 or higher battery pack and adjusting the solar charger is a more efficient and safer option if a balancer is not available. These cheap chinese solar charge controllers aren't always accurate so keep that in mind.

Good morning Sir. Thank you for sharing this. I do not have any technical knowledge but would like to get a small solar system set up for my driveway lighting. Your video helps a lot as I have been thinking about the storage. I'll likelybuse my old laptop batteries to just get started and have a feel for the system. May I ask: 1. I saw some videos saying that it is advisable that the controller have a temperature sensor to protect the battery, but in their video they had a lead acid battery set up. Would this be a concern for the set up you did? I will likely not check it often, so I would like to just make sure it won't be a problem later. 2. I am planning to plug in the load to the controller load connection. Would this be a sound set up or is it better to have an inverter? 3. If I use an inverter, can a 24v battery setup handle it and what inverter wattage is advisable given I plan to run a 24v 40w swing gate opener and 3 6w led bulbs? Sorry for the many queries. Any help would be appreciated.

@vuaeco

4 жыл бұрын

Unless you have wild swings in temperatures, the temperature sensor is not necessary. I rarely use it. Don't use the load on the controller, an inverter should be used. The load on the controller is only 12V DC with very low current. You can use 24V system but 24V inverters are harder to find and more expensive.

@johanteope3918

4 жыл бұрын

@@vuaeco ok, i'll keep that in mind when I plan out my purchases. The temp range is 9 to 28 degrees Celsius plus where I plan to keep the system's case is often shaded.

Can check to see if it will charge 7 cells at 29.4v? Reconnect at 24.4v under voltage protection at 21v? If you could check to see if that charge controller could accept those numbers I would really appreciate it. Thank you

@jakobhovman

5 жыл бұрын

Adam Welch has this in his solar shed videos.

@thesufi

Жыл бұрын

@@jakobhovman YT ink?

@jakobhovman

Жыл бұрын

@@thesufi kzread.info

Will it accept 6 ga wire? I will be running 35 feet from controller to battery and the chart says to use 6 ga stranded wire for 3% loss.

@vuaeco

8 жыл бұрын

No, it does not. Size 10 is pretty much it. It might fit size 8 but it'll be a tight squeeze. But the size of the wire is only half of the story. You also need to know the voltage of the system. The higher the voltage, the smaller the wire you need to run.

@Jerry2Murray

8 жыл бұрын

I understand. I have 35" from the controller to my battery which will provide current to run a Mighty Mule 200 gate opener. I have 2 BP 85 watt panels producing 12v. They will be charging a group 24 AGM deep cycle solar/wind Chrome batt.

Is there a different between AC amp meter and DC amp meter?

@vuaeco

5 жыл бұрын

Yes.

Hi do you have wiring instruction..

i think your idea has one big flaw, just ignore the small ones. on those chargers you can only set the float charge but how do you avoid the equalisation charge? if you just want to charge liion cells use a small bike battery as buffer and use some 12v charger or one than works on usb. you probally could use an li pack with an bms but that would need further testing. some big capacitor could work too maybe.

@rumidom

7 жыл бұрын

i believe these don't have a equalisation mode

@fratermus5502

6 жыл бұрын

Not ANY kind of mode. It charges to the given High Voltage Disconnect setpoint and stops until it drops to the High Voltage Reconnect. It'd work fine for lithium.

@JohnClulow

6 жыл бұрын

Use a 3S BMS. That will handle the equilization, over voltage, under voltage. Around $4.

Charging voltage is not the only parameter. Lithium cells also have a maximum current for charging. Typically this is "1C" (for cheap Chinese LiIon), that means one times the capacity in amp-hours giving a figure in amps. So those 18650 are, say, 1500mAh capacity -> meaning your charger needs to be configured to output a maximum of 1.5A. These cheap lead acid chargers don't have a current limit setting, only voltage. Too much charge current, at best, will reduce the life of your batteries. At worst it's downright dangerous (overheating, fire, etc).

Hello agen my freand really love youre videos i have a quick question or idea i have made a 74v34 ah battery for my e bike and was thinking if the e cobolt positive and negative end would charge the battery wich the cobolt charger like if you use 24v or 48 v paralel or 72 v if it would it would save allot of pepol waching you alot of money insted of geting a cicle statyator charger thats 350eu. Ty agen for the video and keep up the good wark ill send a pict of my e bike 1ns finished.

@ABritInNY

6 жыл бұрын

Pavlos Soultoukis If you're looking to assemble a 'poor mans version,' of grin techs cycle satiator, (yes they're kinda pricey,) to safely charge diff types of batteries (e.g for ur ebike packs) inc lithium at adjustable voltages and power levels (amp rate,) I found the easiest way is to mod a server power supply (I'm using a 1200w HP version) to power an adjustable DC-DC converter (I'm using the 900w digital display drok unit from Ebay.) They are programmable and in full mode they include a coulometer for capacity checking, on the fly adjustable amp and voltage rate, do cc/cv charging plus have 10 creatable presets than can be stored and then loaded up for diff pack voltages. They aren't as neat as a satiator, (one can always make an enclosure,) but they certainly do the job

@pavlossoultoukis4448

6 жыл бұрын

ABritInNY Im finishing my cickle satuetor cables today ill send you a pict 1ns im finishd with the first charge ty for the healp.

The one thing that isn’t covered is the rate of charge. Most 18650 will only take 1.25 amps of charge. Anything more will damage the cells. The only way to get around this is to parallel the cells so they can accept/handle more shared amperage.

@nonsonoilmimi8567

Жыл бұрын

Non è vero

You need a bms for 18650 lithium battery

hmmm 🤔 i wish everything would be that simple 😳

what about balancing them

@swarajpaul414

4 жыл бұрын

If you are making battery pack, you would be putting a BMS on it anyway I guess.

i just want somone to make a completely illogical 220v battery setup...........55 li ion cells in series lmaooooooooooooooooo

Been trying to find one that looks exactly like this one on ebay without success so far. Can you help

@vuaeco

7 жыл бұрын

There many of them on ebay. The blue color on this one is just a plastic sticker. They might not use this sticker any more. But I see many grey colored ones available. Just look for one that has the 2 USB ports at the same spot on the controller and the 3 buttons down below. They are all the same. It's just the stickers make them look different with different colors.

@strobewylan5801

7 жыл бұрын

Like this one? www.ebay.com/itm/10-20-30A-12V-24V-Solar-Panel-Charger-Controller-Battery-Regulator-USB-LCD-/391735371627?

@rumidom

7 жыл бұрын

i founded it on banggood : www.banggood.com/102030A-USB-Solar-Panel-Battery-Regulator-Charge-Intelligent-Controller-1224V-p-1143533.html?p=HB18031095105201501Z

hello, can I use this controller to charge a 4 cell battery?

@vuaeco

5 жыл бұрын

You need to get up to 16.8V to charge a 4S battery pack. This controller can only go up to 15V so the answer is no, you cannot charge a 4 cell battery pack with this controller.

@romariotinoco1642

5 жыл бұрын

Thank you! Do you know any controllers that can reach 16.8v?

can i charge 2liion cells in parallel with the usb output without any bms? thankyou

@vuaeco

7 жыл бұрын

No. USB has a 5V output and it will overcharge a 4.2V Li ion battery. You need a BMS.

another way to limit the voltage been send to the bateries would be inserting a simple blocking diode between the charger and bateries, since these have a forward voltage drop of about 1 volt the nominal 12.7 coming from the charger wil at the battery been reduced to....12.6 volt! problem solved it seems

@ABritInNY

6 жыл бұрын

giottodiotto1 I think you mean 0.1v not 1v

@opera5714

5 жыл бұрын

Diodes are generally about .7V with low voltage Schottky about .3V The big problem is this won't initially power up the controller and/or the controller won't know what voltage the battery is at once it reaches a full charge and is not supplying current to the battery. Back to back diodes may help this or 100 ohm in parallel with diode.

very good videos..thanks

My same one i got lowest is 13v.....

HI VUAECO.HOPE U AND FAMILY ALL WELL.IM THINKING ABOUT USING MY RENOGY ROVER MPPT I HAVE IN BACK OF MY CAMPERVAN TO CHARGE MY EBIKE BATTERY IM NOT UISNG MUCH.ITS 52VOLT 14S5P.CAN I SPLIT INTO 2 AND CHARGE AS 24V TO 26V FROM MPPT.I HAVE 30WATT X 3 PANELS ON ROOF.OR LIKE YOUR VIDEO MAYBE JUST USE A 6S5P BATTERY AND ALTERNATE 2 OF THEM CHARGING .MY WAECO COMPRESSOR 12/24V FRIDGE RUNS AT FRONT OF CAMPERVAN AT MOMENT OFF A 100WATT PANEL AND A DC TO DC CHARGER.SO PERHAPS CAN RUN FRIDGE AT BACK OF 18650S

@vuaeco

3 жыл бұрын

Hi Steve, Yes, you can split the 14S pack into two if you have an 8S charger. Most balance charger are for 6S so you might have to split that into 3 parts (6S, 6S, and 2S)

@stevemcgowan3017

3 жыл бұрын

@@vuaeco ok.so if I use split 14s battery into 3 and charge each 6s from solar neat a time and can I hoping to connect usb to between 12v half of 24v part.ive got a bms bluetooth connected to 14s pack at moment so can monitor cell voltages.so maybe can join 2 x 6s together again to balance or I've seen a 8s charger on eBay 50£

@stevemcgowan3017

3 жыл бұрын

@@vuaeco hi .I’ve split 14s battery into 7s x 2.connected in campervan to renogy rover 20 amp mppt.its 26volt the 7s after charging.there’s 3 x 30 watt panels on roof.I had a usb socket connected to load of renogy but can’t get load to switch on.will usb still work off 24v?been playing with settings on renogy.I get 12/24v up then 24v then press enter but goes back to display 12v each time.I was only using renogy to power usb socket when had 12volt leisure 110ah before.

@stevemcgowan3017

3 жыл бұрын

It seems you can get usb sockets for 12/24volts

@stevemcgowan3017

3 жыл бұрын

sorted for now ive wired usb to battery terminals on works ok so must be 24volt compatible

Go to battery university and have a read if its OK to overcharge your batteries and you will see that its not a good idea to do that its better to undercharge your batteries and they will last longer also

I thought its 3.7v

This video shows you what can be done I wouldn't say it should be done though. If you're going to use Lithium-ion batteries with this particular charge controller there's only one way to do it in my personal opinion. It would be with a 7s configuration. Putting the battery within the parameters of the charge controller without overcharging the battery. Not only do you not want to charge a lithium battery beyond 100%. In a solar setup you really should only be pushing them to 80 to 90% capacity. So even though lithium iron phosphate is a much better chemistry for solar setups I think it's just fine to use lithium-ion cells. Use them if you got em. But use them the right way. And for God's sake if you're going to use the cheapest possible charge controller put a BMS on your battery! I do like your videos but some of them such as this one are a little bit reckless.

@tonlithtech8659

Жыл бұрын

I tried using this setup on my lithium ion battery that has a bms and it blew up. I now use a similar solar charge controller meant for li-ion battery

I thought he was telling the same thing again and again?

Lead acid charge controller can never be used to charge Li-ion batteries, It is not just about voltage limit, It is about charging curve, It may work but it will stress the batteries, I wouldn't advice charging Li-ion batteries with it: batteryuniversity.com/learn/article/charging_lithium_ion_batteries

@vuaeco

7 жыл бұрын

You got your point in that a charge controller might charge a Li-ion battery pack at a faster rate than it's designed for. Most Li-ion batteries would accept 1C to 1.5C charging rate. So if you have a 12V 15 Watts or even 20W solar panel or less, the max charging rate is 1A (considering you will never get 100% efficiency out of a solar panel), you should be fine charging a 12V battery pack in 3S config. But if you have a bigger Li-ion battery pack like a 3S2P 12 Volts pack, you can double the charge rate or you can use a 30W solar panel... and so on. And if you have a high discharge Li-ion battery pack such as from a cordless tool battery, you can safely charge them at 2C or 3C or even more. That means you can even use a bigger panel to charge it. So even though you have your point, a charge controller output is only dependent on how big your solar panel is. And it is also dependent on how big your Li-ion battery pack is and what kind of Li-ion cells you have.

@Capturing-Memories

7 жыл бұрын

No you are completely missing the point, Charging curve is not charging at 1C or whatever C, The two are completely different, Li-Ion have constant amp charge than constant voltage, The charge controller in the video doesn't provide that, So those batteries will be stressed sooner than later, and their capacity will drop dramatically.

@vuaeco

7 жыл бұрын

I don't think so. That is the point. The controller's only job is to limit the current when the battery is full. Besides that, it does little to limit the current. That means all of the current will come from your solar panel when bulk charging (at full speed). That means the current is going to be constant unless you have to charge your battery for a long time because when the sun moves across the sky, it's power to the solar panel changes. So if you only charge the battery pack for only a couple hours, the current is constant until your battery is full in which the controller will limit the current and switch to constant voltage charging. If you only base on the charging curve alone, you are also missing an important point. That is to not charge the battery at a rate more than it's designed for. If you put a 120W solar panel and charge a 3S1P 12V battery pack at 10 Amps when it's only rated at 1C or 2 Amps, you're going to blow up the battery.

@Capturing-Memories

7 жыл бұрын

Read and learn from the link I posted on how Li-Ion should be charged.

@1981dasimpson

7 жыл бұрын

a charge controller manages over charge and over discharge also when the load should be on and off but I use a dc to dc boost converter set to 12.6 volt to charge my pack I find as the pack reaches 12.6 the current flow drop off and charges battery fine I have a 3s20p pack and been running for over 3 years with no problems

Lithium Iron Phosphate Ko Kisi Karta hai......

Its a very good controller until you tried a MPPT charger, then you will change your mind.....

@vuaeco

5 жыл бұрын

This costs $10. How much does an MPPT controller cost?

your thinking too much - you can easy lose 0.03 volts per cell by using longer wires

Unwise.

What about the trickle charge... lead acid has a high discharge rate and if that charge controller is designed for lead acid... then the math shown is incimplete... either he doesnt know difference between lithium ion and lead acid or doesnt care if the lifespan of batteries gets shorter... maybe he is just promoting the product...