Heltec 2S 40A BMS balanced 7.4V 8.4V li-ion NCM BMS/3.2v lifepo4 Lithium iron phosphate battery protection board with heat sink
USD 12.85
Heltec 2S 40A BMS balanced 7.4V 8.4V li-ion NCM BMS/3.2v lifepo4 Lithium iron phosphate battery protection board with heat sink