1.free naintenance free 2.safety and no leakage 3.Certificate UL,CE 4. ... 5.high quality and competitive price 1. 4v 0.3ah valve regulated sealed lead-acid storage battery2. high quality3. the rate of ... life7.wide operating temperature range8. never leakage of acid,9. lead acid battery for desk lamp, lighting, toy, mini-speaker, ... clean and put in the dry place 4V0.25AH sealed lead acid battery