Tools batteries have come a long way over the years. It used to be that battery packs would constantly run out of juice and die before the job was complete. These days, advancing technology has revolutionized this area; cordless tool batteries are now lighter, longer lasting and more compact. DeWalt has once again proved to be the leader in battery technology. Whether you need a compact battery, a long lasting lithium ion battery, or a powerful Nickel Cadmium battery, DeWalt has you covered.