Ryobi P197 Battery ONE + (PLUS) Compatible Replaces P108 Rechargeable Lithium Ion 18 v Volt 4.0 Ah / 72 Wh UL Listed Faster Recharge Single Battery with Fuel Gage : Amazon.ca: Tools & Home Improvement
Ryobi BPP-1413 Drill Battery, Power Tool Battery for Ryobi BPP-1413