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  • 8 Hour Arris Touchstone Modem Backup Battery for Tm802 Tm822 (colors vary)
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8 Hour Arris Touchstone Modem Backup Battery for Tm802 Tm822 (colors vary)

by Arris
| 18 answered questions

List Price: $29.99
Price: $12.25 & FREE Shipping on orders over $35. Details
You Save: $17.74 (59%)
In Stock.
Sold by TLC, LLC and Fulfilled by Amazon. Gift-wrap available.
  • Works with a range of different Touchstone Modems
  • 8.4 Volts
  • 8 Hour Battery Pack
  • 2 Cell - 2.4Ah
9 new from $7.99 6 used from $3.99

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$12.25 & FREE Shipping on orders over $35. Details In Stock. Sold by TLC, LLC and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

8 Hour Arris Touchstone Modem Backup Battery for Tm802 Tm822 (colors vary) + Arris TM822 (Series - TM822G) Touchstone® DOCSIS 3.0 8x4 Ultra-High Speed Telephony Modem + Arris ARCT00830 10/12 Hour Battery For ARRIS Touchstone TG8/TM5/TM6/TM7/TM8 Modems
Price for all three: $179.15

Buy the selected items together

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Product Details

  • Product Dimensions: 3 x 7.8 x 1 inches
  • Shipping Weight: 1.6 ounces (View shipping rates and policies)
  • ASIN: B005E5TRIW
  • Item model number: ARCT02220C
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (98 customer reviews)
  • Amazon Best Sellers Rank: #3,703 in Electronics (See Top 100 in Electronics)

Product Description

For use with Arris modems and other similar devices. ARRIS TM8 SERIES 8 Hour Battery Pack Touchstone Modem Back-Up Battery Pack Model: ARCT02220C Integrated Battery for the Touchstone eMTA 2 Cell. 8.4 Volts. 2.4 Ah This is a Rechargeable lithium-ion battery pack which provides backup power for the ARRIS Touchstone Model TM852 or TM852G eMTA. This battery pack is also tested for the following Touchstone models: TM502G / TM502H / TM504G / TM504H / TM602G / TM602H / TM604G / TM608G TM702G / TM722G / WTM552G / WTM652G / TM802G Battery hold times are typical and can be influenced by the age of the battery, the charging state, storage conditions and operating temperature as well as factors such as data and voice usage. The estimated service life of a lithium-ion battery is 6 to 10 years but can be reflected by environmental issues too. Please consult your Arris device user manual for compatibility.

Customer Questions & Answers

Customer Reviews

Fit perfectly in my cable modem and seems to work as advertised.
Tommy Teague
It’s hard to get excited about a battery. it either works or it doesn’t. The one I got works.
Smitty
Modem light was flashing to indicate bad battery when first installed.
Mike

Most Helpful Customer Reviews

18 of 18 people found the following review helpful By Bryan K. Bailey on February 4, 2014
Verified Purchase
It fits perfect. It works when it's supposed to. And it's WAY cheaper than buying it from Comcast who was supposed to have supplied it anyway because I had a preexisting security system but when they coerced me into upgrading my modem they said the upgrade kit didn't include a backup battery (even though my old one did) but they would be happy to SELL me one for about six times more than from Amazon. Good gosh amighty I hate Comcast.
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14 of 14 people found the following review helpful By PK88 on August 27, 2013
Bought this battery for an Arris TM822G and it arrived pretty quickly and it looked perfectly in good new condition. Installed it into the brand new Arris TM822G modem on a Sunday afternoon, the battery light came on solid and everything looked OK.

By Tuesday, the modem's battery light starts to flash and according to the modem owner's manual, that means the battery is bad. I've read up on a few other sites and there's others complaining about the same thing. The battery doesn't hold after a few days.

Contacting reseller to see what's up.
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7 of 7 people found the following review helpful By Scott Lorandeau on April 24, 2014
Verified Purchase
Arrived loose in a plain shipping envelope. No type of retail packaging. Installed battery with AC power to my Arris TG852 disconnected. The modem LED started blinking after powering the modem back up. The manual states this indicates a bad battery. So I disconnected power to reseat the battery but the modem power LED remained on. I plugged it back in and checked the CMI state on the modem's configuration page. It showed battery was undergoing an initial charge.

After rechecking the battery LED about 12 hours later the battery LED stopped blinking and remained solid. The CMI state showed the battery was in a test state and going through a discharge cycle. Waited another 12 hours and the Battery status now shows telemetry as normal.

Rating four stars at first since there was no paper work with installation instructions or statements on what to expect after installing. Some people may not be patient enough to wait it out and will just assume a bad battery when they see a blinking battery LED. I would have preferred they shipped a charged battery.
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7 of 7 people found the following review helpful By Ray M on May 7, 2014
Verified Purchase
If you have a COMcast ARRIS Gateway, you NEED this.... gives you up to 8 hours of Phone Power in a black-out situation.... also powers up your Internet if you are without electric as well....
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6 of 6 people found the following review helpful By Charles B. Freeberg, Jr. on September 4, 2013
Verified Purchase
ORDERED THE BATTERY FOR MY GATEWAY TELEPHONEY TG862G,,,HAD ZERO CHARGE WHEN I PLACED IT IN THE MODEM, BUT 24 HOURS LATER HAS A FULL CHARGE. SURE BEATS DOUBLE THE COST, AND HASSEL IF YOU BUY IT FROM COMCAST!!!
THANKS
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4 of 4 people found the following review helpful By Gene P. Louie TOP 1000 REVIEWER on February 9, 2014
This battery is used in the Arris TM822 internet and telephone modem.
.
The battery is very reliable. It has operated without fail for the past 1.5 years.
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3 of 3 people found the following review helpful By Robert on September 19, 2014
Verified Purchase
Haven't had a power outage long enough to see if this battery will actually last for 8 hours, but I was pretty bummed when I found out Comcast (my local cable company) does not include the backup battery with the router. Since the router is also used for VoIP (phone) I think it's pretty important to have a battery backup. The cable company was charging some ridiculous amount for the battery so I checked Amazon and found this. This battery works exactly as promised. I forget which vendor I ordered from, but I received the correct brand name battery.
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2 of 2 people found the following review helpful By Akamai22 on September 25, 2014
Verified Purchase
Easy fit; provides 8 hours of run-time for the ArrisTM-822 modem used by Comcast and available elsewhere on Amazon for purchase.
While I bought this mostly for use during power failures, it really is about stabilizing the modem. What I mean is that having the modem running during an outage isn't going to give me internet service... the router will be down as will my desktop. What I wanted was for the modem to keep running during short outages so I wouldn't have to go through a laborious start-up procedure because of a 5-minute outage. [The router restarts much more reliably.]
So far, so good.
Then I read on a couple of blogs that some folks feel like this battery helps keep the modem from crashing when there are power fluctuations. I'm no engineer but as I understand their logic, mini 'brown-outs' occur frequently and can cause the modem to take a lunch break... or go home for the day.
I have to say that the modem does seem more stable since the battery was installed so maybe they're right.
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