... 6 battery, high-power battery, environmental battery, Hg ,lead and Cd free, high capacity, high magnification Chemical system Zn/Mn(Zinc/ ... phenomenon2, Easy to use, no maintenance, especially suitable for free maintenance environment3, Because of easy to use, long storage period ... , recharge, heating the battery. 3, Do not mix old and new batter, different types of batteries. 4, Remove batteries from ...