Is it necessary to employ batteries with integrated BMS in parallel configurations?

I was exploring battery configurations to achieve a specific current output and wondered if it was necessary to connect multiple BMS controlled batteries in parallel to increase amperage. Or is it possible to run all the batteries in series and lower the voltage?

Yes. A better approach would be to connect batteries controlled by integrated BMS in parallel to increase the current intensity.

  1. Built-in BMS Limitations: When using batteries equipped with an integrated BMS, individual battery access becomes challenging without disassembling the entire battery pack. This limitation can pose challenges when working with parallel BMS configurations.
  2. DIY Battery Assembly: If you’re assembling your own battery packs or are willing to disassemble and reconfigure existing batteries, it becomes feasible to connect them in parallel and employ an appropriately sized parallel BMS.
    It’s essential to understand that the key advantage of using a parallel BMS is the ability to maintain functionality even if one line or module experiences a failure. This redundancy is a fundamental feature of parallel BMS setups, ensuring that the system can continue to operate normally in the event of a fault in one part of the configuration.

MORE: Is it possible to connect two lithium-ion batteries in parallel with a separate BMS?

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How to test a BMS fault with a multimeter?

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