3S 40A BMS 1 3S 40A BMS. Insulation Epoxy Plate for 3.2V 280Ah 320Ah 310Ah 90Ah 12.8V Lifepo4 Battery YZH. 12S Lifepo4 36V 200A Smart Battery BMS with Balance Board Common Port +Bluetooth. 4S 6S 5A Active Balancer Board Display Lifepo4 Lipo LTO Battery Smart Equalizer.
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