Type: Li-Ion Nominal Voltage: 12v, 12V Size: customized, customized Nominal Capacity: 15Ah/30Ah/40Ah/50Ah Battery Type: diy lithium ion battery pack Cell Type: 18650/26650 li-ion cell Protection: PCB Circuit/BMS protection Certificate: CE, MSDS, RHOS,UN38.3 CycleLife (80% Prime Capacity): >500times Warranty: 1years Application: Electric Bike,solar system,vehicle etc. Weight: 6kg