ExpertPower Replacement Battery for DeWalt DC9182, DC9181, DC9180, 18V XRP Lithium Ion fits All Dewalt 18 Volt Tools - - Amazon.com
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DC9180 DeWalt Lithium Battery - Non-Rebuildable – MTO Battery
Synergy Digital Power Tool Battery, Compatible with DeWalt DC9180C Power Tool, (Li-ion, 18V, 4000mAh) Ultra High Capacity, Replacement for DeWalt DC9180, DC9180C, DC9182 Battery - Walmart.com