Revitalize your older 14.4-volt Makita power tools by installing Makita's high output 14.4-volt, 2.6 amp hour, Nickel-Metal Hydride Battery No. 193158-3. The Ni-MH Battery can be recharged hundreds of times with literally no memory affect on the battery's cells. The 193158-3 replaceable battery can be used for all of Makita's 14.4-volt cordless tools and you will soon discover the NI-MH technology will outlast and outwork your older Ni-Cad batteries by 70% or more. When time is money the longer you can use a tool without having to recharge the battery, the more time you will save on every project.