lipo battery pack wiring with pics

Batteries, Chargers, and Battery Management Systems.
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wesnewell
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lipo battery pack wiring with pics

Post by wesnewell » May 12, 2012 4:13 pm

Since there seems to be lots of people that don't know how to wire a lipo battery pack or how to do a parallel charge of multiple packs, here's some pics of my 10ah 18s2p pack as a 66.6v nominal pack ready to hook to controller and then set up to parallel charge the 6 bricks together as a 30ah 6s6p 22.2v nominal pack.
b1.JPG
10ah 66.6V 18s2p lipo battery pack
b4.JPG
10ah 66.6V 18s2p lipo battery pack
b7.JPG
10ah 66.6V 18s2p lipo battery pack
b12.JPG
power and balance wires paralleled, 30ah 6s6p ready for charger
schematics for lipo wiring
battwiring.jpg
Typical 2p wiring of all battery types.
battwiring.jpg (17.29 KiB) Viewed 3989 times
12s2p.jpeg
12s2p 44.4V pack using 4 6s lipo packs
12s2p.jpeg (11.8 KiB) Viewed 3989 times
24s3p.jpeg
24s3p 88.8v pack using 12 6s lipo packs
24s3p.jpeg (21.77 KiB) Viewed 3989 times
Attachments
b10.JPG
power leads disconnected, all 6 packs paralleled with balance leads
b13.JPG
Charging 30ah 6s6p pack.
Last edited by wesnewell on Jul 25, 2013 5:06 pm, edited 1 time in total.
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Mongoose 26" Ledge 2.1 mtb bike $99, yescomusa.com 48V 1000W rear hub kit $200, Hua Tong 72V 40A controller $35, 10ah 24s lipo $217=~43mph, range=45 miles @ 20mph. 25K miles and still going strong.
Huffy Fortress 3.0 with MXUS 3000 4T motor, 24s lipo, 96V 60A controller. Total cost with extras <$700. Top speed ~50mph
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cwah
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Re: lipo bttery pack wiring with pics

Post by cwah » May 12, 2012 4:35 pm

Nice pic wesnewell.

I think that there are too much risk of bad connection and lipo fire with this type of cabling. Especially if I have to do it everyday.

Got 2 hyperion 14s so no more thinking and no more problem
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csm
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Re: lipo battery pack wiring with pics

Post by csm » May 13, 2012 6:50 pm

wesnewell wrote:Since there seems to be lots of people that don't know how to wire a lipo battery pack or how to do a parallel charge of multiple packs, here's some pics of my 10ah 18s2p pack as a 66.6v nominal pack ready to hook to controller
I am new to the language used on lipo cell configuration into battery packs.

Your pack is 10ah 18s2p 66.6v. Does that mean you have 2 sets of 18 cells in series that you have connected in parallel? And you have 3 sets of this wired together in parallel to give you 30ah (10ahx3)?

Are you using 4.19v 5ah cells?????

Would this battery configuration be called a 10s4p or 4p10s or?? (ref:
https://endless-sphere.com/forums/viewto ... =1&t=39675 )

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FastDemise
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Re: lipo battery pack wiring with pics

Post by FastDemise » May 13, 2012 11:49 pm

csm wrote:
Would this battery configuration be called a 10s4p or 4p10s or?? (ref:
https://endless-sphere.com/forums/viewto ... =1&t=39675 )

10s4p
21" Hardtail, Docs Torque Arm, Lipo 20s2p, ebikes.ca 9C 8x8 and Lyen 6fet (both Mineral Oil cooled)

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FastDemise
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Re: lipo battery pack wiring with pics

Post by FastDemise » May 13, 2012 11:53 pm

I used to charge up my 12s3p (15Ah) pack up just like that. I used a HobbyKing balance board that I modified to use the batteries 4mm bullet connectors. I just recently gave up doing all the wiring and simply gutted 4 Lipo of all the wires and made into one large 12s2p battery paralleling the balance leads and main connectors. Now I got a duct tape battery with just +/- and the 2 6s balance leads. I find that being able to charge in series I can watch which cells are starting to get low quicker than the rest to spot a weak cell before it becomes a problem.
21" Hardtail, Docs Torque Arm, Lipo 20s2p, ebikes.ca 9C 8x8 and Lyen 6fet (both Mineral Oil cooled)

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jonescg
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Re: lipo battery pack wiring with pics

Post by jonescg » May 14, 2012 12:44 am

wesnewell wrote:
b4.JPG
b7.JPG
b12.JPG
Simple.
Simple :lol: That's why I gave up on rats nests of wiring and started to solder packs together. As long as you know what you're doing, it's all good.

steven.b.watts
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Re: lipo battery pack wiring with pics

Post by steven.b.watts » Apr 24, 2016 8:06 pm

wesnewell wrote: schematics for lipo wiring
battwiring.jpg
12s2p.jpeg
24s3p.jpeg
Do you mean series top to bottom is optional, like this?:

Image

vs this:

Image
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wesnewell
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Re: lipo battery pack wiring with pics

Post by wesnewell » Apr 25, 2016 1:31 am

Either of those will work. The top drawing has the packs paralleled at 6s pack level. The bottom at 12s pack level. Now parallel the balance leads from A to C and from B to D on the bottom drawing and you have the same thing as my 12s2p pack drawing. All 12 cells paralleled at cell level.
Need Advice? https://endless-sphere.com/forums/viewt ... =3&t=66302
Mongoose 26" Ledge 2.1 mtb bike $99, yescomusa.com 48V 1000W rear hub kit $200, Hua Tong 72V 40A controller $35, 10ah 24s lipo $217=~43mph, range=45 miles @ 20mph. 25K miles and still going strong.
Huffy Fortress 3.0 with MXUS 3000 4T motor, 24s lipo, 96V 60A controller. Total cost with extras <$700. Top speed ~50mph
My videos https://www.youtube.com/channel/UC0KW4U ... _G2wQhptMg

joe7dust
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Re: lipo battery pack wiring with pics

Post by joe7dust » Feb 08, 2018 11:13 pm

Very useful info, thank you for sharing. I plan on building a 13s3p pack, what would be the cheapest way to charge it? I was thinking of using a 4 slot 18650 charger and swapping all the cells out manually, but that is probably not practical so I guess I need a BMS. I'm still fuzzy on how to charge it however, watching your youtube videos now @wesnewell

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Re: lipo battery pack wiring with pics

Post by motomech » Feb 11, 2018 10:18 pm

Are you talking about LiPoly "bricks or Li-Ion cells?
Motomech

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joe7dust
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Re: lipo battery pack wiring with pics

Post by joe7dust » Feb 11, 2018 10:21 pm

18650s

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