JK Smart BMS w/Active Balancer BT/RS485 For 4S-8S 40A-300A Li-ion LiFePo4 Akku. Daly BMS Bluetooth Module/RS485/ UART Cable (only fit for old version Daly BMS). Wifi Bluetooth Module For Daly New K/M/S Smart BMS or Daly Old Version Smart BMS.
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