GP1272 (12V28W) -csb battery 12 V 28.0w/cell

"GP series
GP 1272 (12V28W)"
"Valve Regulated Lead Acid Battery
Maintenance-Free Sealed Lead Acid Battery.
Absorbent Glass Mat (AGM) technology for efficient gas recombination of up to 99%."
General Design for Standby Power Applications
"【Design Life】
Up to 5 Years in Standby Service at 25℃
Eurobat (20℃) : 3-5 YEARS STANDARD COMMERCIAL
【 Operating Temperature Range】
Nominal Operating Temperature : 25℃(77℉) Discharge : -15℃ ~ 50℃ (5℉~122℉)  Charge:  -15℃ ~ 40℃ (5℉~104℉)
Storage: -15℃ ~ 40℃ (5℉~104℉)" "【 Float Charging Voltage】
13.5 ~ 13.8 VDC/Unit at 25℃ (77℉)
【Equalization Charging Voltage 】
14.4 ~ 15.0 VDC/Unit at 25℃ (77℉)
【 Self Discharge】
Less than 10% after 90 days, can be stored up to 6 months at 25℃ (77℉);
Fully recharging is required before usage, and charged sooner if stored at higher temperature than 25℃ (77℉)."
Specification Design according with IEC 61056-1/2:2012
"Nominal Voltage                                    12V (6 cells per unit)
Nominal Capacity                                  28W@15Min-rate to 1.67V per cell @25℃ (77℉)
Weight                                                     Approx. 2.10 Kg (4.63 lbs) Maximum Discharge Current               100/130A (5sec)
Internal Resistance                                Approx. 19.8mΩ
Short Circuit Current                             304A
Maximum Charge Current                   2.80A
Terminal types                                       F1/F2 terminal -Faston Tab 187/250
Terminal tightening torque                  --
Container Material                                ABS (UL 94-HB) & Flame Retardant (94-V0) available upon request
Length (L)                             150.9±2.0  mm                  5.94±0.08  inch
Width (W)                              64.8±1.0  mm                  2.55±0.04  inch
Dimensions
Container Height (h)            94.3±1.0  mm                  3.71±0.04  inch
Overall Height (H)                 98.6±1.0  mm                  3.88±0.04  inch"
Constant Current Discharge Characteristics  Unit: A (25℃, 77℉)
F.V/Time 2MIN 4MIN 5MIN 6MIN 8MIN 10MIN 15MIN 20MIN 30MIN 45MIN 60MIN 90MIN
1.60V 58.3 39.7 34.1 29.9 24.1 20.8 15.0 12.0 8.73 6.29 4.98 3.52
1.67V 52.8 36.8 31.9 28.3 23.5 20.4 14.9 11.9 8.65 6.24 4.95 3.50
1.70V 50.2 35.4 30.8 27.5 23.0 20.1 14.7 11.8 8.61 6.21 4.92 3.48
1.75V 45.7 32.6 28.7 26.0 22.1 19.5 14.4 11.6 8.53 6.16 4.89 3.46
1.80V 41.1 29.8 26.6 24.4 20.7 18.5 13.9 11.2 8.26 6.02 4.81 3.41
1.85V 36.5 27.3 24.5 22.7 19.3 17.1 13.0 10.6 7.92 5.79 4.63 3.31
Constant Power Discharge Characteristics  Unit: W (25℃, 77℉)
F.V/Time 2MIN 4MIN 5MIN 6MIN 8MIN 10MIN 15MIN 20MIN 30MIN 45MIN 60MIN 90MIN
1.60V 595 410 356 318 268 232 174 139 101 73.4 58.5 41.8
1.67V 552 387 339 305 262 229 172 138 100 72.8 58.1 41.6
1.70V 532 373 329 298 260 226 171 137 99.3 72.4 57.8 41.4
1.75V 499 350 312 286 249 220 168 135 98.8 71.9 57.4 41.1
1.80V 464 327 294 272 237 212 162 132 96.8 70.6 56.4 40.6
1.85V 425 305 275 256.0 220 197 152 125 93.1 68.4 54.9 39.6

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