Features ◆ slotted into to ensure the battery at 100% capacity, and optimize battery balance. ◆ highly reliable pole double seal structure, impact resistance and sealing performance greatly improved, to ensure that the electrolyte is not leaking, improved product reliability. ◆ safe and reliable, built-in domestic advanced explosion-proof safety valve worry acid tablets, with precise opening and closing valves and pressure-proof, acid mist filter function, once over-charge, can release the excess gas, not the battery bursting, acid mist escaping . ◆ using ultra-pure raw materials and additives, specially formulated electrolyte, with a small internal resistance, good high rate characteristics, charge acceptance and strong features. ◆ the use of advanced technology (Alloy, lead paste technology, electrolyte formula, epoxy-knot craft) to ensure good product performance. Constant battery Features: ☆ design float life of 8 years; ☆ using lead-calcium aluminum multi-alloy; ☆ using gas recombination technology, do not need to add water during use; ☆ high-quality raw materials, strict process control, to ensure that the self-discharge Minimal; ☆ in 25 degrees Celsius, fully charged battery at 0.1 degree charge for 48 hours, no leakage, look no deformation.