As of 2015, The Home Depot, Amazon, Lowe's, Northern Tool + Equipment and Tool Barn all sell 18-volt lithium-ion batteries. Many of these retailers sell 18-volt lithium-ion batteries produced by a number of different manufacturers, such as DeWALT, Milwaukee, Ryobi, Ingersoll Rand and Mikita.
Other manufacturers of 18-volt lithium-ion batteries include RIDGID, Porter Cable, Hitachi, Skil and Bosch. Most of these batteries are designed for use in cordless, handheld power tools, such as drills, reciprocating saws and circular saws.
On Amazon, customers can find the DeWALT DC9180 18-volt lithium-ion battery pack, which is designed to fit all 18-volt DeWALT power tools. This battery pack weighs 1.5 pounds and is capable of delivering at least 2,000 recharges. In order to charge this battery pack, customers must use one of the DeWALT DC9310, DC9320 or DC9319 battery chargers. The battery pack is backed by DeWALT's 3-year limited warranty and comes with a 90-day money back guarantee.
Lowe's sells the Skil SB18B-LI 18-volt lithium-ion battery, which features 1.3 battery amp hours, weighs less than half of a comparable nickel-cadmium battery and is compatible with all Bosch and Skil 18-volt power tools. This battery can receive a full charge in one hour and can hold a charge for up to 18 months.