Advantages 
Super Long Working life: Over 1500 cycles, 4 times more than that of lead-acid battery; 
High capacity density & energy density; 
Wide temperature range: Good working performance ever under 70 centigrade; 
Excellent performance at large charge & discharge rate, stable discharge voltage; 
Super safety:under 150 centigrade for 30 Minutes,no fire, no explosion; 
Maintenance free.