<b>Specification:</b><br> Battery Capacity: 4000mAh<br> Voltage: 18 Volt<br> Battery Type: Lithium ion<br> Color: Black<br><br> <b> Replacement 18V Battery Model: </b><br> for Ridgid 18V Lithium-ion Battery Pack<br> R840083, R840085, R840086, R840087, R840089, AC840085, AC840086, AC840087P, AC840089 Series<br> <br> <b>Compatible with 18V Tools Model:</b><br> for Ridgid 18V Lithium-ion cordless drill tools<br> <br> <b>Compatible with 18V Lithium Battery Charger:</b><br> R840091, R840093, R840095, R86092, AC840094<br> <br><b>Tips:</b><br> It's recommended that the battery should be fully charged and discharged 3 times after you receive the battery.<br> For transport safety, our batteries are not fully charged before leave the factory.<br> After use, please charge the battery after cooling.<br> Always remove battery form your tool when you are assembling parts, making adjustments, cleaning,or when not being used for an extended time.<br> Store it in a clean, dry, cool place away from heat and metal objects. <br> Battery charger is not included.<br><br> <b>Package Includes:</b><br> 1 * ADVTRONICS 18V R840087 Lithium Battery