There are currently two types of batteries on the market, lithium batteries and lead-acid batteries. The UPS system application generally uses lead-acid batteries, but in addition to the advantages and disadvantages of the battery itself, the only advantage of choosing lead-acid batteries may be the price. Lithium ups batteries are quickly occupying the sales market due to their safety, light weight, long life, thorough charging, low maintenance costs, and no memory, and are slowly replacing traditional lead-acid batteries.