12V GEL Solar Energy Battery
NPG250-12(12V250Ah/10hr） NPG series is GEL battery which is manufactured with AGM separator and colloidal Silicon. Gel battery are featured with low self-discharge、strong ability to recover from deep discharging、excellent cycle life and performance at cold ambient temperatures than conventional VRLA.Battery ConstructionComponentPositive plateNegative plateContainerCoverSafety ValveTerminalSeparatorElectrolyteRaw materialLead DioxideLeadABSABSRubberCopperFiberglassColloidal SiliconGeneral Feature●Micro millimeter SiO2 and H2SO4 technology for efficient gas recombination of up to 99% and freedom from electrolyte maintenance or water adding.●Not restricted for air transport-complies with IATA/ICAO Special Provision A67.●UL-recognized component.●Can be mounted in any orientation. ●Computer designed lead, calcium tin alloy grid for high power density.●Long service life, float or cyclic applications.●Maintenance-free operation.●Low self discharge.SPECIFICATIONNominal voltageVNumber of cell 6Length(mm/inch 520/20.5Width(mm/inch) 268/10.6Height(mm/inch 220/8.66Total Height(mm/inch) 224/8.82Approx. Weight(kg/lbs) 63/138.9Performance CharacteristicsCapacity77°F(25℃)100 hour rate (2.9A, 11.1V )290Ah20 hour rate (12.5A, 10.8V)260Ah10 hour rate (23.8A, 10.5V)250Ah1 hour rate (155A, 9.6V)155AhInternal ResistanceFull charged Battery 77°F(25℃): 4.5mΩOperating Temperature RangeDischarge -20~60℃Charge -10~60℃Storage -20~60℃Self-Discharge3% of capacity declined per month at 20 (average)Max. discharge current77℉(25℃): 1200A(5S)Charge(ConstantVoltage)Float: 13.38~13.68V / 77℉(25℃)Cycle: 14.28~14.52V / 77℉(25℃)Max. Current：62.5ADischarge Constant Current (Amperes at 77℉ 25℃)End Point Vlots/Cell5min10min15min30min1h3h5h10h20h1.60V.544.524.312.71.65V.844.024.212.71.70V.043.524.012.61.75V.243.023.812.51.80V.242.323.512.3Discharge Constant Power (Watts at 77℉ 25℃)End Point Vlots/Cell5min10min15min30min45min1h2h3h5h1.60V.61.65V.31.70V.01.75V.71.80V.3(Note)The above characteristics data are average values obtained within three charge/discharge cycles not the minimum values.
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