... system and car starting etc. Specification: Model:TB-3220FHTypeLiFePO4 battery cellNominal voltage: 3.2VTypical capacity20AhInternal Impedance(1kHz AC)<4mΩMax ... and capacity battery pack, we can offer the battery cell, PCM/BMS to you. Most customer purchase our battery cells(3.2V ... 10Ah,20Ah) to assemble the battery pack.Feature: 1.Long life, large ...