Arris ARCT00885 TM4 8 Hour Battery Back up
Product Overview: Rechargeable lithium-ion battery packs provide a backup power source for the ARRIS Touchstone TM4 eMTA. The Touchstone TM402P is capable of holding one or two battery packs. The Touchstone TM402G uses a single battery pack. Battery hold times are typical and can be influenced by the age of the battery, the charging state, storage conditions and operating temperature.