Battery balancing technology can improve the service life of the battery pack and extend the use time of the battery pack. It is suitable for large-capacity nickel metal hydride, 2V lead-acid batteries, lithium-ion batteries, 6V lead-acid, 12V lead-acid and other battery packs, as well as supercapacitor packs. Ladder batteries and selection Ladder batteries refer to batteries that have been used and have reached their original design life, and their capacity has been fully or partially restored through other