3S 25A Li ion 18650 BMS Battery Protection Board PCM with Balance for Lithium ion Lipo battery cell pack|bms pcm|protection board18650 bms - AliExpress
Protection module Li-ion/pol 3S 12,6V/40A | GM electronic COM
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4S or 3S 12V Li ion or Lifepo4 Battery smart BMS with Bluetooth function UART and RS485 communication with 60A to 120A constant current – LLT POWER ELECTRONIC