ARRIS Consumer Care

Touchstone Battery Back-Up Initial Charge Time

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Question

What is the initial charge time for the battery back-up?

Answer

Some Touchstone units includes a battery back-up for voice service subscribers. The battery back-up will allow the voice service to function in case of a power outage, but is not intended to replace the AC power for an extended period of time.

When the Touchstone unit is connected to AC power for the first time or a new replacement battery is installed, the battery begins the initial charge cycle. The initial charge cycle consist of three phases:

Initial charging
Discharging
Recharging

The normal charge after the initial charge cycle is less than the initial charge time. The charge time for the initial charge cycle varies depending on the model of the battery. Refer to the table below.

Battery Back-up Initial Charge Time

Battery Model	Modem/Gateway	Initial Charge Time
5 Hour Battery For ARRIS Touchstone TM5 / TM6 / TM7 Modems	TM502G TM502H TM504G TM504H WTM522G TM602G TM602H TM722G	72 Hours
8 Hour Battery For ARRIS Touchstone TM802 / TM822 Modems and TG852 / TG862 Gateways	TM802G TM822G TG852G TG862G	85 Hours
10/12 Hour Battery For ARRIS Touchstone TG16 / TG8 / TM5 / TM6 / TM7 / TM8 Modems	TG852G TG862G TM502G TM502H TM504G TM504H WTM552G TM602G TM602H TM604G TM608G TM722G TM802G WTM652G TG1662 TG1672	144 Hours
16/24 Hour Battery for ARRIS Touchstone TM722 / TM8 Modems	TM722G TM802G TM804G TM822G	120 Hours 160 Hours (TM722G)
16/24 Hour Battery for ARRIS Touchstone TM5 and TM6 Modems	TM504G TM504H TM602G TM602H TM604G	288 Hours