Maintenance free, no need add water, no need do proportion of acid and so on.

High-current discharge performance, especially the excellent performance of the impact of discharge.

Self-discharge current, whose self-discharge daily rate 2% below under 25℃ which is about 1/4-1/5 of other types of sealed lead acid battery.

No leaking acid, no mist, non-corrosive, does not hurt, low pollution on environment.

Long life, used under 25 ℃ floating charge, the battery life is up to 10-15 years.

Compact construction, good sealing, the battery can be installed with other equipment in the same room, can be vertical or horizontal installation, small footprint, good vibration resistance.

Don’ t exist the shortcoming of “ memory effect” (referring to the cycle of work, the capacity loss) of nickel-cadmium battery.