This is a brand new replacement battery for AT&T NVG589/NVG599 U-Verse gateway. It is designed for internet and TV equipment and has a unit quantity of 1. The battery has a 7.4V power supply and comes in black. The SKU for the battery is 586185-002-00. This battery is suitable for use in modem-router combos and home networking and connectivity devices. It is manufactured by ARRIS and is a unit type product. The battery is compatible with AT&T NVG589/NVG599 U-Verse gateway and can help to ensure uninterrupted internet and TV services.