Home Depot offers free gift with Ryobi 18V 4 Ah Battery (2-Pack) + Charger purchase. Shipping is free.
- Click Free Gift with Purchase, choose Cordless Grease Gun (Tool Only), choose ship to store and then return/cancel extra Batteries
- RYOBI ONE+ 18V Lithium-Ion 4.0 Ah Battery (2-Pack) and Charger Kit + Grease Gun $99 or just keep the battery pack $38