If you have Ryobi tools, you need Ryobi power. With the P102 18 Volt Lithium Ion battery pack, you’ll have the ideal combination of lightweight design and long lasting power for a variety of applications around the home or workplace. Its power is up to four times greater than older NiCad models. Even when their power is low, these batteries will perform at their maximum power until completely drained. You, also, will not be drained. With this battery’s light weight, you’ll likely be able to work with decreased fatigue. Whether you want to replace your older NiCad batteries or have an extra on hand, the Ryobi P102 is your best bet.