Makita once made a huge step forward with their 18 volt batteries by moving on to the earth friendly Ni-MH style and away from the harmful heavy metal containing Ni-Cad. Not only were the N-MH batteries better for our planet, but they also featured longer run times. Now they have taken an even bigger step with LXT Lithium-Ion Batteries. These batteries feature a sliding design that lengthens the life of the unit compared to the traditional pod design. They also offer a compact battery that offer's Lithium-Ion power in a lightweight package.