One battery, Many tools. Use the 40 V Lithium battery to power up a range of FULL BOAR cordless machines. The 2.0 Ah battery fully charges in 117 minutes with the FULL BOAR charger LC4010, in 50 minutes with charger LC8022 and in 43 minutes with charger LC8050. This powerful battery features Lithium-Ion technology to give you the long-lasting power you need to take on any project that comes your way. Comes with an on-board fuel gauge to display remaining runtime. With this additional FULL BOAR Battery on hand, you will never run out of runtime! The battery is sold as a single battery and does not include a charger or a tool.