Ideal for larger yards or jobs that need a bit more run time, the RYOBI 40V 6Ah High Capacity Battery is the perfect addition to your RYOBI 40V collection. This 6Ah battery gets 3X more runtime than the RYOBI 40V 2Ah Compact Battery, while delivering the same fade-free power and performance. All RYOBI 40V batteries come with an on-board fuel gauge to display remaining runtime. This battery works with all RYOBI 40V tools and chargers.