... lead acid battery 1.Sealed,environment-friendly 2.Small resistance 3.Small self discharge 4.Safety and explosion-proof lead acid battery ... Application : UPS system,Emergency Power Supply system,solar system,railway,autos,security system KEY FEATURES: 1. ... adding electrolyte is unnecessary. CAUTION:Keep the lead acid battery dry,ventilative and coolMake regular examinationFull charge before ...