No memory effect, namely buy and use, with charge; Ultra-low self-discharge, no significant decrease in the long time; Strong power, more powerful use time; Durable, original A cell; Mercury free, non-toxic, safe and environmentally friendly; Safety explosion-proof, worry-free use; Anti-theft lock reinforcement, security is not afraid of theft; Weight: about 45g; Size: 360*96*40mm; Cycle life: 2000 times. Do every battery with your heart.