1) Lead acid battery 2)CE and SGS certificate. 3)Have ourself factory. 4)Best price , good service, faster delivery. Product AttributeLead acid batteryVoltage6vCapacity7.0 ... (Mainland) 5) 3 years shelf life6) Applications: Heart Rate Monitor, bike, Car, Keyless Car Remotes, Organizers, Scooer,other toys Brand 1 ... , SGS,ROHS Certificate with shezhen famous industry 6v 7.0ah sealed lead acid battery