... batteryCertificate:ISO9001, ISO14001, CE, UL,IEC KPM Series Battery Ni-Cad Battery Log in Website:www.sunstonepower.com For Detailed Information ... prevent micro short circuit4.ABS material: increase the strength of battery container. (Flame-retardant ABS is optional)5.High purity ... our own Lead Line & smelter factory & plate factory & SLA battery assembling factory, the purity quotient of our lead is 99 ...