Sealed Lead-Acid Battery: 6V,4AH ,with 1000 cycles at 30%DOD, Maintenance-free operation Sealed Lead Acid BatteryNominal voltage: 6V · Nominal capacity 4Ah Height: 106mmLength ... · Sealed construction and leakproof · Safety valve regulated system · Operating in any position · Deep discharge recovery · Wide operating temperature range Lead Acid Battery, SLA,VRLA