Stable voltage dry battery for generator room High capacity & high ... Number 6, R40. Description:Zn/Mn battery, R40battery, No.6 battery, high-power battery, environmental battery, Hg ,lead and Cd free, ... 2, Do not attempt to decomposition, recharge, heating the battery. 3, Do not mix old and new batter, ... for extended periods of time.Company introduction Stable voltage dry battery for generator room