Characteristics: 1.Large capacity, high energy; 2.Exmious performance of deep-cycle discharge Unique accumulator plate grids alloy and lead calcium copper terminals that apply to large current discharge can let our products apply to deep-cycle discharge much more. It is good recovery of deep discharge; 3.secure sealed structure 4.good coherence 5.eximious aseismatic structure have passed vibratory test 6.low self-discharge 7.be the same with diversified environment 8.there are no acid fog, no polluting, and no canker equipment in charge discharge process. 9.short charge time