Now there are a lot of repair instruments on the market, but most of the companies selling repair instruments are to sell equipment, there is no technology, the effect of the repair instrument is not good, a lot of people want to do battery repair in the Internet to see their propaganda, thought the repair instrument is the omnipotent, what the battery failure can be repaired, in fact, the repair instrument is only on the battery sulfurization, feeder has a certain effect on the broken frame, short circuit of the battery, the repair instrument is a good idea to use the battery repair instrument. Broken frame, short-circuit battery is no effect, repair instrument can only be used as a tool, to dry battery repair, learning good manual repair battery technology is the main.