... 2,color:black 3,weight:31kg 4.lead acid The gel battery is widely applied for new energy, telecommunication, banking, ... 500 2V 500Ah 241mmx172mmx331mmx366mm31kg Up to 7years FreeCharacteristic of gel battery:1. GEL condition: The effect of sealed reaction is over 99 ... five hundred times. 6. Good over-discharging recovery performance: The GEL battery can recover its capacity too 100% after it discharges ...