SHENZHEN SUNNYWAY BATTERY TECH CO.,LTD. R SWR25500(2V550AH) 370 365 Outer dimensions (mm) 223 106 Specifications Terminal Type (mm) 2V Rated capacity (10 hour rate) 550 Ah 20 Total Height 370 mm (14.57 inches) Height 365 mm (14.37 inches) Length 223 mm (8.78 inches) Width 187 mm (7.36 inches) 11 Nominal Voltage Dimensions M8 20 38.5Kg (85.08 lbs) Weight Approx Discharge Curves 25 (77 ) Characteristics 10 hour rate(55 A) 5 hour rate(88 A) 1 hour rate(330 A) Capacity 25 (77 ) Internal Resistance Full charged Battery at 25 (77 ) Capacity affected by Temperature (10hour rate) 40 (104 ) 25 (77 ) 0 (32 ) -15 (5 ) Charge (constant Voltage) Cycle Float 550 AH 440 AH 330 AH 2.30 2.20 2.10 2.00 1.90 1.80 1.70 1.60 1.50 1.40 1.30 Approx 0.36 m 102% 100% 85% 65% Capacity after 3 month storage Self-Discharge Capacity after 6 month storage at 25 (77 ) Capacity after 12 month storage Terminal 187 110 SwR25500 (2v550Ah) 91% 82% 64% 110A 55A 275A 550A 1160A 0 1 2 4 6 8 10 20 40 60 2 4 6 8 10 20 40 T36 Initial Charging Current less than 220 A Voltage 2.35-2.40V Voltage 2.25-2.30V Constant Current(Amp) and Constant Power(Watt) Discharge Table at 25 (77 ) 5min Time 1.60V 1.70V 1.75V 1.80V 1.85V A W A W A W A W A W 10min 15min 30min 1h 2h 3h 4h 5h 8h 10h 20h