Belkin Battery Backup Replacement

An uninterruptible power system, or UPS, is essential to keep your electrical equipment protected against natural or man made power disruptions. Belkin International Inc. not only produces these units, but many other consumer electronics focusing on connectivity devices. The Belkin Unit Rev B in particular is designed to maintain the AT&T U-verse Residential Gateway and AT&T U-verse Voice service.

Along with any UPS unit, you will need to acquire Belkin battery backup replacement batteries every 3 years or so. In this article, we will cover options available to you to purchase and keep your Belkin Rev B unit running in case of a power outage. The Belkin Rev B UPS backup unit takes Universal 12V batteries with 8Ah and F1 Terminals.

Belkin Battery Backup Replacement Batteries

AT&T used to sell backup battery replacements for this unit, but it is no longer an option for their customers. Now you have to purchase replacement batteries on your own..

Belkin Gateway Replacement Battery

If you are a stickler for using original brand batteries, you can purchase a replacement battery straight from Belkin. This way you can ensure you are getting the battery that is designed intentionally for your unit. However, you will be paying nearly double the price as opposed to other batteries that will do the job just as well.

Mighty Max Battery 12V 8AH Replaces Belkin Residential Gateway RG Backup Battery

With 5 out of 5 stars on Amazon, this Belkin battery backup unit Rev B replacement battery is a perfect fit and at the right price. Mighty Max Batteries come with a state of the art, heavy-duty, calcium-alloy grid that provides exceptional performance with Absorbent Glass Mat spill-proof technology. The seller includes a 30-day money-back guarantee with a 1-year warranty.

Universal Power Group 12V 8AH SLA Replacement Battery 

Just like the Mighty Max, this Universal Power Group Battery matches the requirements for Belkin Rev B UPS Unit backup battery replacement and price. It has not yet been reviewed on Amazon, but the seller also offers a 1-year warranty for this battery.

How to Replace Backup Battery for Belkin Rev B UPS Unit

According to the Belkin Rev B User manual, these are the instructions you need to take to replace your backup battery.

Step 1

Turn off power switch. Disconnect the RG Battery Backup from power and any connected devices. Remove the battery door on the rear of the RG Battery Backup by pressing the tab on the top of the battery door and pulling outward.

Step 2

Remove the battery from enclosure; remove the wire connections from the battery. 

Step 3

Connect the new battery (black-to-black, red-to-red); place the battery into enclosure. WARNING: Carefully connect the wires to the correct terminals. The replacement battery will have color-coded terminals (red = +, black = -). 

Step 4

Securely reconnect battery door.

For battery replacement and recycling information, please call Belkin at 866-539-5791, or visit their website at

Now your Belkin Rev B UPS unit is taken care of, you can have peace of mind knowing that you will have phone and internet access in case of a power outage.

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