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By certification 
1. Made by world's top OEM factory- Betterpower Battery Co., Ltd (i.e., BPI)
2. World's highest real capacity: AAA1100mAh and AA2700mAh
3. Insulative battery cap: no external short-circuit, no leakage (China Patent No.:ZL200720121169.8)
Positive and Negative is completely separated from outside battery by the new battery insulation cap, which can fundamentally get short-circuit and creepage resolved. Also it solved the security problem caused by the external short-circuit during storage and transportation
4.Patented anti-explosion development: Betterpower battery would not blast.
When Ni-MH battery is fully charged, the hydrogen-stored alloy metal powder in negative electrode is filled with Hydrogenium. If internal or external short-circuit happens, battery may largely release heat and then cause internal gas expansion, if gas release equipment is unworkable for timely releasing gas, explosion may happen.
Generally, batteries are shipped by sea with around 30~40 days delivery time and charged battery's explosion risk is higher because of high temperature on the sea.
2. World's highest real capacity: AAA1100mAh and AA2700mAh
3. Insulative battery cap: no external short-circuit, no leakage (China Patent No.:ZL200720121169.8)
Positive and Negative is completely separated from outside battery by the new battery insulation cap, which can fundamentally get short-circuit and creepage resolved. Also it solved the security problem caused by the external short-circuit during storage and transportation
4.Patented anti-explosion development: Betterpower battery would not blast.
When Ni-MH battery is fully charged, the hydrogen-stored alloy metal powder in negative electrode is filled with Hydrogenium. If internal or external short-circuit happens, battery may largely release heat and then cause internal gas expansion, if gas release equipment is unworkable for timely releasing gas, explosion may happen.
Generally, batteries are shipped by sea with around 30~40 days delivery time and charged battery's explosion risk is higher because of high temperature on the sea.