Features: (1) thick plates has a longer battery life (2) Flame-way exhaust valve is safe and has a long battery life (3) durable polypropylene (PP) battery compartment cover ( 4) tank lid sealing adhesive can prevent leakage (5) absorbed glass fiber technology allows gas recombination efficiency up to 99%, so that the electrolyte has a maintenance function (6) UL certification (7) multi-cell battery design allows Battery installation and maintenance more economical (8) can be used in any orientation. Vertical, lateral or side placement (9) special provisions in line with the International Air Transport Association / International Civil Aviation Organization of the A67, can be put into operation in aviation. (10) can be non-hazardous materials Ground Transportation (11) can be non-hazardous materials waterway transport (12) computer-designed low calcium lead alloy grid, minimizing the amount of gas produced, and can be easily recycled . Sea-battery international brand, quality assurance, the main raw materials are from Germany, its technical and performance indicators have reached the level of similar products in Europe and France, won the American UL certification and the EU CE certification. Has been widely used in the world's major areas of ups, telecommunications, electricity, emergency lighting, solar energy systems, power-driven, and other marine applications. Lu Sheng battery features: fully sealed, maintenance-free design. To meet the high-frequency deep discharge degree of need, greatly enhancing the release and discharge of persistent and deep cycle discharge capacity. Immersion plate formation (FTF unique plate formation process). AR electrolyte. No leaks. VRLA, the maximum opening pressure of 2Psi (1Psi≈7KPA). Use any direction.