Specifications:
The GFM-400 Series VRLA Battery has a nominal voltage of 2 V and a capacity of 400 Ah at 10 hours to 1.80 V at 25˚C (77˚F). It weighs 22.6 kg (49.82 lbs) and has dimensions of 158 mm (6.22 in) in length, 181 mm (7.13 in) in width, and 346 mm (13.62 in) in height, with a total height of 365 mm (14.37 in). The internal resistance when fully charged is 0.51 mΩ, and it has a short-circuit current of 4380 A. The self-discharge rate is less than 3% after 30 days of storage.

Operating Conditions:
The operating temperature range for discharge is -40˚C to 50˚C (-40˚F to 122˚F), for charge is -20˚C to 45˚C (-4˚F to 113˚F), and for storage is -20˚C to 40˚C (-4˚F to 104˚F). The recommended operating temperature is between 15˚C and 25˚C (59˚F and 77˚F). The recommended charging current is 60 A, with a float charging voltage of 2.23 V/cell and an equalize charging voltage of 2.35 V/cell. The terminal type is M8, and the container materials are ABS or optional ABS V0.

Design Life and Applications:
The design life at 25°C (77°F) is 15 years. The battery is suitable for backup power in telecom and signal systems, electric systems, nuclear plants, military and maritime equipment, UPS, emergency lighting, and storage for solar, wind, and hydroelectricity energy.

Technical Features:
The battery offers good performance for charge acceptability, excellent capacity retention rate, and excellent capacity recovery performance. It is designed for long life in cyclic or float applications (C10).

Certifications:
The battery is certified with UL, CE, ISO 9001, ISO 14001, and GB/T 28001.

Benefits:
The GFM-400 battery reduces operational costs, provides excellent deep cycling performance, reduces CO2 emissions, and has a long life.

Additional Information:
The document includes performance curves and discharge characteristics at different rates and temperatures. It notes that specifications are subject to change without notice and advises contacting CHINASHOTO for the latest information.