Constant Constant Battery 12V40AH storage battery manufacturers, high strength long life tight assembly technology to improve battery assembly tightness, prevent loss of live material, improve battery life. 2, low self-discharge high-purity raw material and special manufacturing processes, self-discharge is small, can be stored at room temperature more than six months without having to make electricity. 3, simple maintenance Special oxygen absorption cyclic design overcomes the battery during the charging process of electrolysis of water loss phenomenon, in the course of almost no change in the moisture content of the electrolyte, the battery during use completely without water and simple maintenance. 4, the internal battery is equipped with a special safety valve, can effectively isolate external sparkle, will not cause the battery to explode inside. 5, does not produce battery when environmental clean mist on the surrounding environment and supporting the design of non-corrosive, can directly to the battery installed in the office or equipment room, without human embalmed. Performance (1) depth of discharge backfilling strong, even after discharge did not replenish out of power supply capacity to get back to 100% charge. (2) is the ideal batteries for recycling - the most suitable for everyday use. (3) The discharge time with excellent performance. (4) is more suitable for high-temperature environments. (5) applies to electricity mains supply unstable environment. (6) no liquidity gelled electrolyte, the electrolyte does not produce stratification within the battery. (7) without a balanced charge. (8) self-discharge. (9) is very precise amount of acid control, effective protection of the positive electrode plate and greatly improved battery life. (10) The use of thick plates, reduces grid corrosion, and greatly improves the battery life. (11) The low internal resistance, charge acceptance ability. (12) compared with the AGM battery, under normal charging conditions, the battery internal moisture loss is very small. (13) polymer separator Germany advanced technology to create and improve battery performance and life. (14) the application of ultra-high mechanical strength of the separator, to avoid the possibility of short circuit. (15) In the absence of a fully charged case, it can discharge the battery, and the battery will not have any damage.