Sealed Construction
The unique construction and sealing techniques of DAHUA batter ies guarantee leakproof operation in and position with no adverse effect to capacity or service life.

Electrolyte Suspension system
DAHUA batter i es utilize an electrolyte suspension system consist i ng of a high porosity, totally absorb and contain the elec tr olyte. No silica gels or any other contaminants are used.

Gas Generation
DAHUA batteries incorporate a built-in design that controls gas generation and induces recombination of more than 99%of gases generated during float usage.

Maintenance Free Operation
There is no need to check specific gravity of the electrolyte or add water to DAHUA batteries during flo a t service life .In fact, there is no provis i on for this type of maintenance.

Low Pressure Valve Regulated System
All DAHUA batteries are equipped with safety release valves, designed to operate between 0.98-196.1kpa and automatically reseal. Hence, there is never an excessive accumulation of gas within the battery.

Heavy Duty Grids
Heavy duty lead calci u m tin alloy grids provide an ex tr a margin of performance and service life in either float or cyclic applications, even after repeated over discharges.

Cyclic Service Life
More than 1000 discharge / recharge cycles can be realized from DAHUA batteries, dependent on the average depth of discharge.

Float Service Life
DAHUA DH FM Series batteries have an expected life span of 3 to 5years in float service applications.

Self Discharge-Shelf Life
The sel f discharge rate of the DH FM series at room temperature is approximately 3% of rated capacity per month.

Operating Temperature
DAHUA DH FM Batteries may be operated over a broad range of ambient temperatures.