Ryobi OP40404 40V 4Ah Lithium-Ion High Capacity Battery.  Brand new in the box ready to go.  Was sent to me directly from the Ryobi factory 3 weeks ago, so it's as fresh as can be.  Ryobi OP404 Charger included.

GENUINE Ryobi OEM - NOT an aftermarket knock off battery


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ALASKA, HAWAII, PUERTO RICO, VIRGIN ISLAND & GUAM BUYERS:  THIS WILL SHIP VIA USPS GROUND ADVANTAGE,  SO THE ESTIMATED SHIPPING TIMES GIVEN BY EBAY MAY BE QUITE LONGER..