... all kinds of batteries, such as um1, um2, AA and AAA2) All has stronger power, um1 can discharge ... battery/Heavy duty battery Professional Battery Manufacturer OEM service ISO, SGS, CE, RoHS approvalsProduct: Super alkaline battery, Zinc carbon battery, Super heavy duty battery, Dry battery Our battery ... also passed the CE and SGS test Our products inlcudes AA, AAA, C, D SIZE, and 9V both Alkaline ...