BLACK+DECKER LCS1240 40-volt Cordless Chainsaw, 12-Inch 40V MAX Lithium Ion Battery for longer runtime and overall life 12" premium bar and chain. Automatic oiling system Suitable for pruning branches and cutting fallen limbs Tool-free chain tensioning for quick and easy chain adjustments. 40V MAX* 2.0Ah Battery provides over 60 4x4 pine lumber cuts on average per single charge Full wrap around handle for comfortable cutting in different orientations