If you have a large yard or need extra run time, the Ryobi 40-Volt 5.0 Ah high capacity battery is the perfect addition to your Ryobi 40-Volt collection. This 5.0 Ah battery lasts 2x longer than the standard Ryobi 40-Volt high capacity battery while delivering the same fade-free power and performance. All Ryobi 40-Volt batteries come with an on-board battery life indicator for user convenience and over-molded edges for impact protection. This battery works with all Ryobi 40-Volt tools and chargers. there's never been a better time to consider cordless.