The RYOBI 18V ONE+ Lithium Starter Kit is the perfect way to extend the runtime of your 18V system and increase your productivity. Add a 4Ah and 2Ah Lithium battery and charger to your collection when you purchase this starter kit. With up to 3X more runtime than the standard lithium battery, you will get more done, faster. The compact design is lighter weight and reduces overall user fatigue. These batteries feature a high visibility LED fuel gauge to clearly indicate remaining runtime. Fade-free power allows users to optimize the entire charge of the battery in all weather conditions. Easily install and remove the battery with secure quick-release latches. Part of the RYOBI ONE+ System - Any 18V ONE+ Battery Works With Any 18V ONE+ Product. This 18V ONE+ Lithium Starter Kit is backed by the RYOBI 3-Year Manufacturer's Warranty and includes PBP005 18V ONE+ 4Ah Lithium Battery, PBP006 18V ONE+ 2Ah Lithium Battery, PCG002 18V ONE+ Charger and Operator's Manual.