... ,ETL,CE,RoHS• Our main battery application : Power tools,E-bike ,E-Scooter ,E-Moto ,Golf cart ,E-wheelchair ,PDA,Solar System,Electric ... .2V20Ah to assemble difference voltage and capacity battery pack. We also see the battery cell 3.2V20Ah, 3.2v 10Ah.^-^ ... battery pack use 3.2v20Ah cells,built-in PCM/BMS to protect the battery safety. ^-^ Below is PCM/BMS Photo UL Certification LiFePO4 12V Battery for ...