GFM series are made of Lead paste suitable for big current discharging,special alloy of high corrosion resistance. They are disposed of unique
designed disgassing structure and sealing technology.GFM series are featured with high rate current discharge,high reliability,low self-
discharge,flexible installation and easy maintenance.
Product Features
1.12 years floating design life
2.Excellent consistency
3.High reliability
4.Low self -discharge
5.Good recovery from deep discharge
ElectricalSpecification
Design floating Life @ 20°C (68°F) …… ..….…. 12 years
Nominal Capacity @ 25°C /77°F
20 hour rate 13.2 A to 10.8V ….......... .. ….….. 264Ah
10 hour rate 25.0 A to 10.8V ……..........… .….. 250Ah
5 hour rate 44.1 A to 10.5V ……........... … 220.5Ah
1 hour rate 148 A to 9.6 V …….............…..…148Ah
Internal Resistance
(Fully charged battery @ 25°C /77°F ) ……. 3.5 mΩ
Max. Discharge Current @ 25°C /77°F …………….1100A (5S)
Charge Methods: Constant voltage charge @ 25°C /77°F
Cycle Use ……………………………………… 14.4 ~ 14.7V
Max. Current …………………………………......75A
Standby Use …………………… ...... …….......... 13.5V - 13.8V
Operating Temperature Range
Discharge …………... ……………… .. ……… .. -20 ~ 55°C
Charge ……………………………………… .. 0 ~ 40°C
Storage
…………... ……………… .. ……… .. -20 ~ 55°C
Recommended Operating Temp ……….…....... 20 ~ 25°C
Self-Discharge
The capacity declines by 3% per month@ 20°C (68°F). The batteries can be stored up to 6 months @ 25°C (77°F) and then a freshening charge is required. The interval under higher temperature would be shorter.Constant Current Discharge* (Amperes @25 /77°F)) and then a freshening
charge is required. The interval under higher temperature would be shorter.
Dimensions
Dimension and Weight
Constant Current Discharge* (Amperes @25 /77°F)
Constant Power Discharge* (Watts/cell @25 /77°F)
*The mentioned data are derived from of sample test result, for reference only.