Needed new PCM for weird Polymer hub battery

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flyfreebike
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Needed new PCM for weird Polymer hub battery

Hi. I have this battery that is out of a hub battery built by eneng in china, there are two packs, I measure the voltage on each at 22.2 volts. I do not understand. Each pack looks like it has 10 cells and they are paired together. There are 6 solder tabs on the top with like 5 small wires going to the pcm. The pack is connected to another pack, again 22 volts. The math does not add up.
Attached photo.\
I need a new pcm and fuel gauge, and charger.
But why do I read 44 volts. Maybe its a 48 volt pack? but by the cell count I would guess its a 37.
I dont know how to add photo, just email me and I'll send it.
Thanks
P.S. I just getting into electric bikes and find this site very helpfull.

flyfreebike
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Re: Needed new PCM for weird Polymer hub battery

P1010064_0.jpghere is the image.

LinkOfHyrule
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Re: Needed new PCM for weird Polymer hub battery

It's a 37V LiPo pack, but it'll come out higher (4.2V+ per cell) when fully charged.

What's wrong with it, exactly? Might not need all that stuff...

The author of this post isn't responsible for any injury, disability or dismemberment, death, financial loss, illness, addiction, hereditary disease, or any other undesirable consequence or general misfortune resulting from use of the "information" contai

flyfreebike
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Re: Needed new PCM for weird Polymer hub battery

I dont have a charger, and I would like to repack it in a case and use it as a second battery. there is a PCM. It has two heavery 18 gage wires and two small wires. I put my li-ion 36 volt on it for a second and the lights indicated charged. Do I need a higher voltage charger?

flyfreebike
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Re: Needed new PCM for weird Polymer hub battery

OK I see now, I tested and indeed it spools it up. Now I just need to me sure of the 4 leads out of the PCM.
Regarding the case, non metalic for sure, would the packs be installed tighly as not to chaff, but I am concerned about too much padding and not enought air space.

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