Ryobi OP4050A 40-Volt Lithium-Ion 5 Ah High Capacity Battery

The 40-Volt 5.0 Ah high capacity battery is the perfect addition to your 40-Volt collection. This 5.0 Ah battery lasts 2x longer than the standard 40-Volt high capacity battery while delivering the same fade-free power and performance. All 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 40-Volt tools and chargers.