Rated Voltage [V] 48V 48V 48V 48V
Capacity [C10][Ah] 200Ah 300Ah 400Ah 500Ah
Length [mm] 715 mm 916 mm 916mm 1370mm
Width [mm] 385mm 385mm 385mm 385mm
Height [mm] 1040mm 1180mm 1362mm 1040mm
Electric Characteristics
Voltage Range [V] 42V-54 V 42V-54 V 42V-54 V 42V-54 V
Charging Voltage [V] 54V 54V 54V 54V
Charging Mode CC/CV CC/CV CC/CV CC/CV
Max Charging Current [A] 30A 45A 60A 75A
Max Discharging Current [A] 30A 45A 60A 75A


GFM-XC series cycling long-life LA battery is a high-tech product, which developed independently by COSLIGHT. It can be widely used at II or III class power supply areas for telecom system, EV and etc. Compared with the previous generation VRLA battery, the cycle life of the 6-GFM-XC series battery can be raised more than 60% at 100% DOD.

GFM-XC series adopt lead-calcium alloy material with adding corrosion-resistant X additives, which improves decay resistance performance of grids greatly.

The battery adopts special positive active material additives and electrolyte additives. Raising the life of active material additives and restraining electrolyte layering make a great improvement for cycle life of the battery.

The battery adopts high elastic superfine fiberglass separator to reach closed assembly, and get a great improvement for cycle life of the battery.

Discharge Characteristic
Cycle Life
Discharge Time
DOD (%)

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