GreenWorks 20182 Enhanced 24V Lithium-Ion 10-Inch Chainsaw -- Enhanced 24V 2 AH Battery and Charger Included GreenWorks Enhanced 24V Lithium-Ion battery offers higher efficiency and enhanced performance to get yard work done 10-inch steel bar and chain for robust cutting and clearing yard of broken limbs 3/8-inch chain pitch delivers the right amount of capabilities to get those limbs trimmed and cut with minimal kickback Automatic oiler applies oil to bar and chain when needed to ensure durability and optimal use with a translucent oil tank for clear view of oil level Compatible Only with GreenWorks Enhanced 24V Battery Models 29722, 29732 and Charger Model 24132