I am a cabinet maker by trade, and have tried just about every type out there. I go through about 5 per year. The only ones worth looking at are the Makita ones. They are the only ones with a smart charging system. If you leave your battery on the charger longer than it needs to be than it will stop holding a charge. The Makita charger senses if the battery is too hot, too cold, and the level of charge it needs.
