The RYOBI 40V Lithium-Ion Battery Starter Kit includes two 4 Ah batteries with a fast charger, ideal for powering a variety of tools and equipment in your home or garden. These rechargeable batteries have a lithium-ion technology for long-lasting power and come in a sleek green color. With a charge time of just 60 minutes, you can quickly get back to work on your projects without any downtime. The kit is from the trusted brand RYOBI, offering reliable performance and durability for all your power tool needs.