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Help me with this "easy" connection please


Panamanian
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Hi there. I'm new here, and this is my first time trying to fix my Ilife V7S pro vacuum cleaner battery.

Original battery is this:  Click to see

I want to replace the 4 18650 with my INR18650-25R daweikala

I have seen several videos of how to solder, risks of 18650 and other stuff, but after disassembly the pack (4S1P), i found this module, I'm not sure if it's a BMS or just a balancer or just a charger or a mix of everything.

This is the module Click to see

Backside image: Click to see

Also it has: V1, V2, V3, V4, P+, P- and B-

I dont see B+

Could you please guide me how to make the connections? I see just one plug to discharge and to charge.

 

Thanks infinitely

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20200216_142351.jpg

Edited by Panamanian
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