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  1. R

    DIY Li-Ion Battery BMS cuts off due to voltage drop, then recovers

    Hello guys, So I have a 5S2P pack I made for a bluetooth speaker (uses TPA3166D2 amp), protected with a BMS board with balancing. I first used the pack directly to connect to the amplifier, and it worked fine, and the battery life was really good, since pack starts at 21V and then goes down to...
  2. R

    Using USB power banks in parallel

    Hello, I am new to this whole battery world :) I am building a 5S2P battery pack for TPA3116D2 amp. I have a CC CV Step-Up board to charge it and a BMS. The amp will be directly connected to the BMS. I want to increase the capacity (and run time) of the amp. I was thinking of connected a USB...
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