Provides up to 2X the runtime of Ni-Cd Batteries Provides maximum performance with fade-free Lithium-Ion power Over 225 ONE Tools – All Work With Any RYOBI ONE 18V Battery The 18V ONE ™ 1.5Ah Compact Lithium™ Battery features new and improved Lithium-Ion cells, providing the user with over 50% more runtime compared to the P102 battery. Featuring Extreme Weather Performance, this battery can withstand frigid weather conditions and is engineered to deliver fade-free power for maximum performance.