Energy storage bank battery features: High current,no need to parallel into battery pack; Size of cells could be customized to customerâ??s requirement 80% Long cycle life,after 500 times charge and recharge cycle,battery capacity still maintain 80% High safty performance: under condition of shor circuit, over charge,overdischarge,impact,vibration,puncture,high temperature and etc,no fire, explosion happens No memory effect: Could be charged and discharged any time No pollution: free of Cadium, lead,mercury,green energy. Be applicable for: power bank,bluetooth,notebook,and PDA, etc. power bank battery used for communications: Main spefication/particular function AA battery 1.2V Voltage,400mAh, Could be added PCM,wire,connector,and shell according to customerâ??s requirement Long cycle life: Could be charged and discharged over 500 times Safty: With PCM,protection for overcharged and overdischarged,much more safer than Lithium battery. Environmental: free of heavy metal like Cadium,lead,mercury etc Widely used for LED,power bank Mainly apply for communication equipment,probe and medical equipment. Factory direct-sale,the superior performance-to-price ratio, could customize and supply matchable charger according to the customers requirement.