The valve controlled sealed gel battery No free electrolyte and no acid mist overflow during normal using The service life is more than 5 years Model 6-CNJ-90 Rated Voltage 12V Capacity 90Ah Weight 28.5Kg Max Discharging  Current 30I10A(3min) Max Charging Current ≤0.25C10 Self -discharge ≤3% month Recommendated Using Temperature 15℃-25℃ Cover Material ABS