... &UL approved 5) 8 years manufacturer Lead acid battery 6V 4Ah:Application: new energy, telecommunication, banking, medical industry ... : 1. Excellent safety performance: No electrolyte leakage, battery swelling and cracking under normal use. 2. Good ... of 25 degrees Celsius, the fully charged battery discharges with fixed resistance which is equivalent to ... for 5 seconds. Lead acid battery 6V 4Ah