Cells per unit: 6
voltage per unit :12v
internal resistance approx.: 4 mω
recommended maximum charging current limit: 60a
operating temperature range discharge: -20°c~60°c charge:0°c~50°c storage:-20°c~60°c
normal operating temperature range: 25°c ± 5 °c
float charging voltage: 13.6 to 13.8v dc/unit average at 25°c
equalization and cycle service : 14.4 to 14.6v dc/unit average at 25°c
self discharge: gel batteries can be stored for more than 6 months at 25°c. self-discharge ratio less than 3% per month at 25°c. please charge batteries before using.