Enter the RYOBI 18V ONE+ System with the RYOBI 18V ONE+ Lithium HIGH PERFORMANCE Starter Kit. INTELLICELL battery technology features advanced electronics allowing batteries to last longer, think smarter and deliver up to 30% more power. The COOL-CORE design reduces temperature to optimize battery performance and extend battery life. Advanced lithium cells maximize performance and runtime during demanding applications. Pair these Lithium HIGH PERFORMANCE batteries with any 18V ONE+ HP tool to leverage high performance brushless motors and advanced electronics for more power, longer runtime and the overall best experience on the 18V ONE+ system. With 2X faster charging than PCG002, this charger decreases downtime significantly. This dual port charger is compatible with all RYOBI 18V ONE+ batteries and allows users to charge two batteries at the same time. Featuring LED indicator lights, users can easily identify battery charge status. The Energy Save Mode conserves energy when not charging or maintaining batteries. Part of the RYOBI ONE+ System - Any 18V ONE+ Battery Works With Any 18V ONE+ Product. This 18V ONE+ Lithium HIGH PERFORMANCE Starter Kit is backed by the RYOBI 3-Year Manufacturer's Warranty and includes PBP004 18V ONE+ 4Ah Lithium HIGH PERFORMANCE Battery, PBP003 18V ONE+ 2Ah Lithium HIGH PERFORMANCE Battery, PCG005 18V ONE+ Dual-Port Simultaneous Charger and Operator’s Manuals.