... VRLA BATTERY/Solar battery/AGM BATTERY/Deep cycle batteryGFM-500G(2V500AH)Application: UPS, Telecommunications, Control equipments, Office equipment, Alarm systems, Solar ... : UL, CE, SA8000,ISO9001,ISO14001,OHSAS18001Features:long lifedeep cyclemaintenance freesafty 2V500AH GEL VRLA BATTERY,solar gel battery