40V 4Ah Battery

This 4.0 Ah battery gives you up to 50% longer run time 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