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Unread 06-18-2019, 10:55 AM   #1
Getting Wild
 
Join Date: Sep 2012
Posts: 119
Default Leaf Lithium battery pack/box build basic questions

I am building the battery pack and want to confirm a few things first.

1. do the modules need any plates between them? I have the factory end plates (4 of them), and I have thin strips that seem to be placed between some modules based on pics I have seen on here. But I don't see the need for them.

2. I assume the modules naturally stack together with opposing terminals near each other (so that I can connect the small bus bars from positive to negative).

3. Does anyone have a diagram or pic of how to run the bus bars and the wiring for the BMS? I want to make sure I am hooking that part up right!!!

Thanks
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Unread 06-18-2019, 08:55 PM   #2
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Default Re: Leaf Lithium battery pack/box build basic questions

Attached is a basic drawing of a 7 module 14S pack. This wiring applies to the Ali Express BMS on the leaf modules. It was originally drawn for the BMS from EV Battery Center before Nick passed away. I have others for a ZEVA BMS.

No plates need between modules.

What cart is this going into?

Pics are of an assembled pack
Attached Images
File Type: jpg IMG_20180803_154936215.jpg (330.0 KB, 0 views)
File Type: jpg IMG_20180803_154931080.jpg (323.5 KB, 0 views)
File Type: jpg IMG_20180803_154921902.jpg (304.9 KB, 0 views)
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File Type: pdf Lithium 7 Cell Pack w WiFi - Tap Harness.pdf (343.1 KB, 0 views)
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Unread 06-19-2019, 06:22 AM   #3
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Default Re: Leaf Lithium battery pack/box build basic questions

Wow, that looks nice PingEye! Thanks about clarifying about the plates between the modules. I see, even in the pictures above, three studs on the modules; two of which are being used to hold the wire clamps. I thought those were part of some brace but I suppose they are built onto some of the batteries? Mine is going into an EzGo. I suppose you have to make all of the wiring including the larger cables? Thanks again.
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Unread 06-20-2019, 01:46 AM   #4
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Default Re: Leaf Lithium battery pack/box build basic questions

Quote:
Originally Posted by PingEye3 View Post
Attached is a basic drawing of a 7 module 14S pack. This wiring applies to the Ali Express BMS on the leaf modules. It was originally drawn for the BMS from EV Battery Center before Nick passed away. I have others for a ZEVA BMS.

No plates need between modules.

What cart is this going into?

Pics are of an assembled pack
I may have missed your build thread... what is the source of the box in your pack ? You built it, or somebody sells these ? Thanks!
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