Features thick plate so that the battery has a longer life flame-way exhaust valve so that the battery is safe and has a long life and durability of polypropylene (PP) battery compartment cover absorbed glass fiber technology allows gas recombination efficiency of up to 99 %, the electrolyte is maintenance-free function UL certification Multi grid cell design makes installation and maintenance more economical battery can be used in any orientation. Placing special provisions in line with the International Air Transport Association / International Civil Aviation Organization vertical, lateral or side A67, may aviation into operation. May be non-hazardous materials waterway transport computer-designed low calcium lead alloy grid, to minimize the amount of gas produced, and easy recycling slot cover can prevent leakage of heat seal adhesive applications: aviation, marine equipment communications equipment Solar systems for power plants, power plants power switch on arms supply monitoring system uninterruptible power supply medical equipment Emergency Light