If your 4V, 18V, 24V, 40V, or 80V battery falls out of its warranty, Ryobi advises you to visit The Home Depot. Considering it's out of warranty, the battery will also exceed the retailer's return ...

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To begin using, connect a Ryobi 18V battery pack to the Power Source, available at Home Depot for $49.00, with a 4.7 out of five-star rating. A home hobby workshop can quickly become messy.