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GP-1272 　

GP 1272 is a general purpose battery with 3-5 years in standby service or more than 260 cycles at 100% discharge in cycle service.

As with all CSB batteries, all are rechargeable, highly efficient, leak proof and maintenance free.　
Specification
Cells Per Unit 6
Voltage Per Unit 12
Capacity 7.2 Ah @ 20 Hr-Rate to 1.75V Per Cell @ 25°C(77°F)
Weight Approx. 2.55 Kg (5.6 LBS)
Maximum Discharge Current 100A/130A (5 Sec)
Internal Resistance Approx. Approx. 21 mW
Operating Temperature Range Discharge : -20°C~50°C ( -4°F~122°F)
Charge     :    0°C~40°C (32°F~104°F)
Storage    : -20°C~40°C ( -4°F~104°F)
Nominal Operating Temperature Range 25°C ± 3°C(77°F ± 5°F)
Float Charging Voltage 13.5 to 13.8 VDC/Unit Average at 25°C (77°F)
Recommended Maximum Charging Current Limit 2.16A
Equalization and Cycle Service 14.4 to 15.0 VDC/Unit Average at 25°C(77°F)
Self Discharge CSB Batteries can be stored for more than 6 months at 25°C(77°F).  Please charge batteries before using.  For higher temperatures the time interval will be shorter.
Terminal Faston Tab 187/250
Container Material -ABS (UL94-HB)*Flammability resistance of UL94-V2 can be available upon request. 
Dimensions
Constant Current Discharge Characteristics Unit : A ( 25°C, 77°F)
F.V/Time
5MIN
10MIN
15MIN
30MIN
1HR
2HR
3HR
4HR
5HR
8HR
10HR
20HR
1.60V
 28.6 18.6 14.3 8.75 5.28 3.06 2.18 1.72 1.42 0.930 0.760 0.400
1.67V 26.8 17.9 13.9 8.69 5.27 3.05 2.17 1.71 1.41 0.930 0.753 0.386
1.70V 26.0 17.6 13.8 8.67 5.26 3.05 2.17 1.71 1.41 0.930 0.750 0.380
1.75V 24.3 16.8 13.3 8.55 5.24 3.03 2.16 1.71 1.41 0.925 0.740 0.370
1.80V 22.5 16.0 12.8 8.42 5.22 3.00 2.15 1.70 1.40 0.920 0.730 0.360
1.85V
 20.8 15.2 12.4 8.30 5.20 2.98 2.14 1.70 1.40 0.915 0.720 0.350
Constant Power Discharge Characteristics Unit : Watt ( 25°C, 77°F)
F.V/Time
5MIN
10MIN
15MIN
30MIN
1HR
2HR
3HR
4HR
5HR
8HR
10HR
20HR
1.60V
 343 223 171 105 63.4 36.6 26.2 20.7 17.0 11.2 9.10 4.74
1.67V
 321 215 167 104 63.2 36.4 26.1 20.6 16.9 11.1 9.02 4.62
1.70V 312 211 165 104 63.1 36.3 26.0 20.6 16.9 11.1 8.99 4.57
1.75V 291 202 160 103 62.9 36.2 25.9 20.6 16.9 11.0 8.87 4.44
1.80V 270 192 154 101 62.6 36.0 25.8 20.5 16.8 10.9 8.75 4.31
1.85V
 249 183 149 100 62.4 35.9 25.7 20.5 16.8 10.8 8.63 4.18
All mentioned values are average values.