Panamanian Posted February 16, 2020 Share Posted February 16, 2020 (edited) 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 Edited February 16, 2020 by Panamanian Error in images Quote Link to comment Share on other sites More sharing options...
Richard Mackay Posted February 17, 2020 Share Posted February 17, 2020 Forget about the PCB. Simply cut the original battery case, remove the batteries and replace with new ones. Then tape the battery pack up again. Quote Link to comment Share on other sites More sharing options...
P1000 Posted February 17, 2020 Share Posted February 17, 2020 V4+ <cell> V3+ <cell> V2+ <cell> V1+ <cell> B- Quote Link to comment Share on other sites More sharing options...
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