The uninterrupted power supply (UPS) that houses your battery will beep when the battery needs to be replaced. You can mute these alerts until you’re able to replace the battery.
How to mute audible alarms and tones
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Model A |
Model B |
Model C |
- Press and hold the Alarm Silence button 1-2 seconds to mute the alarm for 24 hours.
- To restore the alarm before the 24 hours has elapsed, press the Alarm Silence button again and hold it 1-2 seconds.
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- Press the button for 3 seconds to disable the audible alarm.
- The unit will beep once confirming that audible alarms have been disabled.
- To enable audible alarms, press this button a second time.
- The unit will beep twice confirming that audible alarms have been enabled.
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- Press and hold 1-2 seconds to mute the alarm for 24 hours.
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The battery must meet the following requirements:
12V VRLA (Valve Regulated Lead-Acid) battery
7.2 Ah
Length: 151 mm (5.94”)
Width: 65 mm (2.56”)
Height: 93 mm (3.66”)

This guide will walk you through how to replace your battery in 3 easy steps. Your Bell services, including Home phone, Internet and TV, will be interrupted during this process. This is normal and your service will resume when the replacement is complete. Please note that installation will take approximately 15 minutes.
Home Hub 3000 users: please visit Stay connected during a power outage with your Home Hub 3000 for complete details on the battery back-up.
This guide is a supplement to the manual enclosed in your kit. There are three manuals, one for each type of battery unit model. To determine which of the three manuals to read, go to Step 1B to see if you have model A, B or C.
If you have model A, your manual is entitled CyberPower; model B's manual is called DC UPS Installation and Operation Manual; and model C's manual is DC UPS Operation Manual (Leave with Customer). Please read the applicable manual before beginning installation.
Before you begin, make sure you examine the new battery carefully and inspect it for any cracking, leaking or swelling. If you notice any evidence of damage, do not use the battery and you can contact us for help.
- Pick up the new battery and remove the protective cap by sliding it off the red positive terminal. The protective cap on the black terminal is permanent and should not be removed. This permanent protective cap prevents the possibility of creating a short circuit between the battery poles.

- Connect the red wire clip in the battery unit to the positive red terminal of the new battery. Be careful to ensure you connect the correct wire to the correct terminal of the battery. There is a danger of explosion if the battery is incorrectly connected.

- Connect the black wire clip in the battery unit to the negative black terminal of the new battery.

- Insert your new battery into the battery compartment and close the latch. Then, ensure the wires are clear and not pinched by the door before closing.

- For safety, place the protective cap that was removed from the new battery, on the old battery. This will prevent the possibility of creating a short circuit between the battery poles. Please ensure there are protective caps on both poles before shipping the battery back to Bell.
- Plug in the same power supply that you unplugged in Step 1A. Once the battery has been successfully replaced, the low battery/replace battery indicator will turn off. If you have Model B or C, you may need to press the cold start button.