Amazon.com: RYOBI RY36B40B Lithium + Battery 36 V - 4.0 Ah : Tools & Home Improvement
Ryobi 36v
Amazon.com: RYOBI - 1 x Lithium + 36 V Battery Compatible with all 36 V Max Power Gardening Tools - 4.0 Ah - Individual Charge/Discharge Cell Management and Regulated Energy - BPL3640D2 : Tools & Home Improvement