I'm doing something wrong but.....BYD modules/balance charging settings using ISDT Q8?[/frustration]

Maast said:

I'm at work right now but tomorrow I'll take a closeup picture of the current stripped down byd pack on my test bench so you can correctly identify the main negative and positive.

In the mean time here's a photo from a earlier post of mine. If you take a close look at the photo below, if you look at the right side of the pack you'll see the main positive is the broad aluminum bus bar that directly connects to the post and the main negative is the broad aluminum bus bar that is attached to a copper bar that wraps around the pack and eventually is bolted to your negative post.

The tester cables are attached directly to the main neg and pos. In my bank I'm attaching directly to each packs main neg and positive and have removed the posts. I had to cut the positive post off and drill holes in the aluminum bus bar for my new positive attachment point.

Your red wire should be attached to the right pos broad copper bar and the first neg to the broad bus bar to the left.

BTW, there is a heck of a lot of copper in the the bus bars that wrap around from the main neg to the neg post, useful for all sorts of stuff.
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Steve_S said:

Oil & Water. Lifepo is Lifepo, LiPo is Lipo. The chemistries & charge profiles are very different.

MAX for LFP (LiFEpo4) is 3.65 per cell (100% SOC) and 2.50V is Empty or 0% SOC.
Operational curve is 3.55V to 2.75V

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