SHENZHEN SUNNYWAY BATTERY TECH CO.,LTD. R SW628(6V2.8AH) Outer dimensions (mm) 33 97 103 66 Specifications Rated capacity (20 hour rate) 2.8 Ah Total Height 103 mm(4.06 inches) Height 97 mm(3.82 inches) Length 66 mm(2.60 inches) Width 33 mm(1.30 inches) Dimensions Weight Approx 3.2 6.35 0.8 Nominal Voltage 4.75 Terminal Type (mm) 6V 0.61 Kg (1.34 lbs) Discharge Curves 25 (77 ) Characteristics 20 hour rate(0.14A) 10 hour rate(0.26A) Capacity 5 hour rate(0.48A) 25 (77 ) 1 hour rate(1.68A) 1.5 hour discharge to 5.25 V Internal ResistanceFull charged Battery at 25 (77 ) Capacity 40 (104 ) affected 25 (77 ) by Temperature 0 (32 ) (20hour rate) -15 (5 ) Capacity after 3 month storage Self-Discharge Capacity after 6 month storage at 25 (77 ) Capacity after 12 month storage 2.80 AH 2.60 AH 2.40AH 1.68 AH 1.12 A 30 m 102% 100% 85% 65% 6.90 6.60 6.30 6.00 5.70 5.40 5.10 0.56A 0.14A 2.8A 4.50 91% 82% 64% 0.28A 1.12A 4.80 5.6A 4.20 8.4A 3.90 10A 0 1 2 4 6 8 10 20 40 60 2 4 6 8 10 20 40 Terminal Charge (constant Voltage) T0 Initial Charging Current less than 1.12 A Cycle Voltage 7.20-7.35 V Float Voltage 6.75-6.90 V Constant Current(Amp) and Constant Power(Watt) Discharge Table at 25 (77 ) 5min Time 4.80V 5.10V 5.25V 5.40V 5.55V 10min 15min 30min 1h 3h 2h A W A W A W A W A W R 4h 5h 8h 10h 20h