Marine Battery
NP7-6 (6V7Ah/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 3Length(mm/inch 151/5.94Width(mm/inch) 34/1.34Height(mm/inch 94/3.70Total Height(mm/inch) 100/3.94Approx. Weight(kg/lbs) 1.05/2.31Performance CharacteristicsCapacity77°F(25℃)20 hour rate (0.35A,5.25V )7Ah10 hour rate (0.66A, 5.25V)6.6Ah5 hour rate (1.2A, 5.25V)6.0Ah1 hour rate (4.3A, 4.8V)4.3AhInternal ResistanceFull charged Battery 77°F(25℃): 15mΩCapacity 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℃): 105A(5S)Charge(ConstantVoltage)Float: 6.8~6.9V / 77℉(25℃)Cycle: 7.25~7.45V / 77℉(25℃)Max. Current：1.75ADischarge Constant Current (Amperes at 77℉ 25℃)End Point Vlots/Cell5min10min15min30min1h3h5h10h20h1.60V2817.614.28.004.301.891.260.690.361.65V26.516.813.67.704.201.841.240.680.361.70V2516.013.07.394.101.801.220.670.351.75V23.515.212.47.104.001.741.200.660.351.80V22.114.411.86.833.901.681.180.650.34Discharge Constant Power (Watts at 77℉ 25℃)End Point Vlots/Cell5min10min15min30min45min1h2h3h5h1.60V32.722.918.19.797.865.493.502.521.611.65V30.621.517.19.307.505.263.392.461.591.70V28.520.216.28.807.135.023.282.401.561.75V26.618.815.18.286.744.773.152.331.511.80V24.617.614.17.776.344.513.022.251.48(Note)The above characteristics data are average values obtained within three charge/discharge cycles not the minimum values.
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