Works with all RYOBI 40V tools and chargers Fade-free lithium-ion power On-board fuel gauge displays remaining runtime Charges in 30 minutes or less with the RYOBI 40V Rapid Charger (Model # OP406A, Internet SKU 312564301) Charger Sold Separately Power your RYOBI 40V tools with this compact lithium-ion battery. This 2.0 Ah battery provides fade-free power and runtime, whether you use it as a replacement or a spare battery. This battery works with all RYOBI 40V tools and chargers.