The protection circuit is built in the anode with a steel hat by riveting process. So the ARB-L18-2300 can be fully covered with steel shell and eliminate potential risk of short circuit caused by collision and impact.
Features Prevent short circuit Multiple protection 500 charge cycle Buil-in pressure relief vent
500 Charge Cycles: A properly maintained ARBL18 battery is designed to retain up to 75% of its original capacity at 500 full charge and discharge cycles.