RYOBI ONE+ 18V 4.0 Ah Lithium-Ion Battery PBP005 - The Home Depot
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Makita 18V LXT Lithium-Ion High Capacity Battery Pack 4.0Ah and Charger Starter Kit w/bonus 18V LXT 5 in. Random Orbit Sander BL1840BDC1-XOB1 - The Home Depot
Makita 18V LXT Lithium-Ion High Capacity Battery Pack 4.0Ah with Fuel Gauge and Charger Starter Kit BL1840BDC1 - The Home Depot