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Continue to ChatBMS 4S 40A Li-ion 18650 BMS PCM Battery Protection Board Balanced Version https://www.multanelectronics.com/product/4s-40a-li-ion-18650-bms-pcm-battery-protection-board-balanced-version/
BMS 4S 40A Li-ion 18650 BMS PCM Battery Protection Board Balanced Version https://www.multanelectronics.com/product/4s-40a-li-ion-18650-bms-pcm-battery-protection-board-balanced-version/