Amazon.com: Synergy Digital Power Tool Battery, Compatible with Ryobi CMI- 1802M Power Tool, (Li-ion, 18V, 3000mAh) Ultra High Capacity, Replacement for Ryobi BPL-1815 Battery : Tools & Home Improvement
18V Battery for Ryobi CHI-1802M CHP-1802M CHV-180L CHV-18WDM - Walmart.com
Amazon.com: Synergy Digital Power Tool Battery, Compatible with Ryobi CMI- 1802M Power Tool, (Li-ion, 18V, 3000mAh) Ultra High Capacity, Replacement for Ryobi BPL-1815 Battery : Tools & Home Improvement