Thanks for the video dude. Easy to follow and straight forward.

I had to do a double take on those parallel connections because it's a bit counter intuitive, but I've got it now. Good how to, thanks.

@RCVideoReviews

3 жыл бұрын

Glad it helped!

Thanks John Your description of the work done in the Video is simple yet Superb . Keep going John and we njoy flying happily . Regards

@RCVideoReviews

3 жыл бұрын

Thanks, will do!

Thank you. That was a very timely and useful video as that is one of my winter projects to make up some li-on packs.

@RCVideoReviews

3 жыл бұрын

Awesome. Go to it. It's kind of fun making custom packs.

That was a great job, now I need to do is get the material to build my own I’m gonna do it step-by-step same way you did it. ⭐️⭐️⭐️⭐️⭐️

@RCVideoReviews

3 жыл бұрын

It's kind of satisfying being able to make your own packs. Thanks for the comment.

Simple and good job!

@RCVideoReviews

2 жыл бұрын

Thank you. :)

thanks for that awesome video gonna give it a try!

@RCVideoReviews

Жыл бұрын

Have fun!

Great video thank u . Now I can make my own battery packs 😌 🤗

@RCVideoReviews

3 жыл бұрын

Go for it! It's really easy once you figure out the parallel/series arrangement.

Great Video John plain and simple love that color "Gotta have a strategy right " lol

@RCVideoReviews

3 жыл бұрын

Thanks Robert. Yeah, I like that bright green too. It should stand out if it's ever separated from the plane.

Nice Video. One thing that I feel should be noted is when explaining wiring balance leads is that you should start with the negative and each subsequent lead is “positive” despite the wire color. In manufacturing its documented negative to positive so the only change in schematic for instance between a 3s and 4s is adding 1 balance lead and a cell. If documented positive to negative every single cell and lead label would have to be changed. This also comes into play when dealing with dual voltage packs, BMS’s, load balancers etc. The one thing that stays constant between any battery packs/ chargers is the negative lead despite the pack type. The nominal positive terminal always changes based on how many cells are in series. Im NOT saying the way you explained balance leads in video was incorrect. Just that if you look at it backwards, scaling your packs up or down become much more trivial. 11:29 You said cell 1. technically that is cell 3. cell 1 always starts from the negative side. you can plug your pack into any tester or charger to verify this.

cool

How do you combat the issue of esc low voltage cutoff? Considering these can be discharged further than a typical Lipo.

@RCVideoReviews

15 күн бұрын

Add a lipo alarm to the balance plug or just put a cell checker on it and watch it as you use it.

great video! could you share links to the 3D files please? Many thanks

@RCVideoReviews

3 жыл бұрын

Here you go: www.thingiverse.com/thing:4706232

I went to see a battery that says 10c, if I bring it to then 6 cubes, it will be 60c, do I get it right?

Thanks. After watching this video I realized that I can do the same instead of buying lipo packs. Could you also attach a connection scheme? I didn't understand how you connected the balance connector.

@RCVideoReviews

3 жыл бұрын

I can do better than a diagram, I can give you a dynamic diagram: Check this out: www.offshoreelectrics.com/lipo.php

@DjemOk

3 жыл бұрын

@@RCVideoReviews Thanks for the link. This is what I wanted. BTW, How to calculate discharge rate for this battery pack?

@RCVideoReviews

3 жыл бұрын

​@@DjemOk The cells are 2500mah and 25a. So that means they are 10c cells. This doesn't change due to series/parallel connections, they're still 10c. Three cells in series are still 25a. Putting two in parallel yields 50a but 5000mah. So still 10c.

My quad draws less than 20 amp which cells do u recommend me to get more flight time

@RCVideoReviews

3 жыл бұрын

Get yourself some 10a 18650's and put them in parallel in any voltage/capacity combo you can support within the weight constraints of your quad. Putting them in parallel gives you more amperage carrying capacity. i.e. 2 10a cells in parallel let you run 20a of current.

Hi there good video 👍I have a question what type of lipo battery u used with ur spot welder and what’s the discharge rate in the same lipo battery ?

@RCVideoReviews

3 жыл бұрын

3s2200 40-70c. Just keep the voltage above 12v and a strong 3s lipo will probably do the job.

@juanhernandez1238215

3 жыл бұрын

@@RCVideoReviews thanks man

What's the c rating of these batteries? Are using used batteries or New? What's the of this pack ? On which plane did you used this pack any video?

How much does it weight?

What does it mean that the cell specs say that it has 10A continuous discharge ? Does it mean that I can pull a whole 10A of that cell or what exactly ?

@RCVideoReviews

9 ай бұрын

10a is a rate not a capacity. It means you ca consume the capacity of the cell safely at a 10a rate.

@PerchEagle

9 ай бұрын

@RCVideoReviews Yes I know it's the current rating for let say 2800mAh cell with 10A discharge rate. Now if I want to get the max current. What current I can get without getting the cell to get excessive hot ?

@RCVideoReviews

9 ай бұрын

Usually discharge rates are specified in C as in 40c. You multiple that number times the AH rating of the pack to find the constant discharge rate in amps.

2:04...I would add 10-20% extra on the circumference to make it easier to insert the batteries into the Heat Shrink... You know that it will shrink... ;-)

@RCVideoReviews

3 жыл бұрын

I rounded up to the next closest size.

@lasersbee

3 жыл бұрын

@@RCVideoReviews Just as good. I mentioned it for people that never used heat Shrink.

I will try this, I got maxAmps battery, they have 30amp of discharge

@RCVideoReviews

3 жыл бұрын

Do you mean 30c or 30amps? It needs ~120a to weld.

@firozdang

3 жыл бұрын

@@RCVideoReviews check this out its 30AMPs, I have 4 of these www.maxamps.com/maxamps-18650-battery-2150mah-30a

If each cell is 2500 milliamp what is the math that you use to get to 5000 milliamp total

@RCVideoReviews

3 жыл бұрын

3s = 2500mah. 2p = 2500x2.

@dannycoelho1813

3 жыл бұрын

I have the same question, I just don't understand how that adds up. Each cylindrical battery is advertised @ 2500 mAh. You have 3 in series and another 3 in parallel correct? Even so 3 batteries x 2500 mAh is where the confusion for me is at. I hope that made sense. If be interested in making some flight packs

@huskrman1

3 жыл бұрын

It doesn't matter how many are connected in series it will still have the same mah. It's when you connect them in parallel that the amount changes so if you have 2 in parallel then the amount would double or 3 in parallel then it would triple.