12V AGM Lead Acid Battery
NP4-12 (12V4.0Ah/20hr)The rechargeable batteries are lead-lead dioxide systems. The dilute sulfuric acid electrolyte is absorbed by separators and thus immobilized. Should the battery be accidentally overcharged producing bydrogen and oxygen, Special one-way valves allow the gases to escape thus avoiding excessive pressure build-up. Otherwise, the battery is completely sealed and is, therefore, maintenance-free, leak proof and usable in any position.Battery ConstructionComponentPositive plateNegative plateContainerCoverSafety ValveTerminalSeparatorElectrolyteRaw materialLead DioxideLeadABSABSRubberCopperFiberglassSulfuric AcidGeneral Feature●Absorbent Glass Mat(AGM) 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 90/3.54Width(mm/inch) 70/2.76Height(mm/inch 101/3.98 Total Height(mm/inch) 107/4.21Approx. Weight(kg/lbs) 1.30/2.86 Performance CharacteristicsCapacity77°F(25℃)20 hour rate (0.2A, 10.8V )4.0Ah10 hour rate (0.38A, 10.5V)3.8Ah5 hour rate (0.7A, 10.5V)3.5Ah1 hour rate (2.5A, 9.6V)2.5AhInternal ResistanceFull charged Battery 77°F(25℃): 35mΩCapacity affected byTemperature(20hour rate)104℉ (40℃)102%77 ℉ (25℃)100%32 ℉ (10℃)85%5 ℉ (-15℃)65%Self-discharge68℉ (20℃)Capacity after 3 months storage90%Capacity after 6 months storage80%Capacity after 12 months storage60%Max. discharge current77℉(25℃): 60(5S)Charge(ConstantVoltage)Float: 13.6~13.8V / 77℉(25℃)Cycle: 14.50~14.90V / 77℉(25℃)Max. Current：1ADischarge Constant Current (Amperes at 77℉ 25℃)End Point Vlots/Cell5min10min15min30min1h3h5h10h20h1.60V14.08.657.054.102.501.150.720.390.211.65V13.28.156.703.932.411.100.720.390.211.70V12.47.726.393.752.321.050.710.380.201.75V11.67.316.104.562.251.000.700.380.201.80V10.96.952.793.392.140.950.680.370.19Discharge Constant Power (Watts at 77℉ 25℃)End Point Vlots/Cell5min10min15min30min45min1h2h3h5h1.60V26.816.713.38.336.004.832.991.861.221.65V25.115.712.67.925.724.632.901.821.201.70V23.514.711.97.495.444.422.801.771.181.75V21.813.811.27.055.144.202.691.711.161.80V20.212.810.46.624.853.972.581.661.13(Note)The above characteristics data are average values obtained within three charge/discharge cycles not the minimum values.
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