DEWALT DC9180 18 -Volt Lithium-Ion Battery Pack for $77.49

Design with long-lasting power for all your projects, the DC9180 18-volt battery pack from DEWALT features innovative NANO technology for truly outstanding performance. Designed to work with nearly all DEWALT 18-volt power tools, this battery can be re-charged 2,000 times and has no memory. The DC9180 relies on either the DC9310, DC9320 or DC9319 chargers (not included).