Select your device
Shop The Source for Bell Smart Home batteries.
After the battery replacement, please contact us to confirm was it successful and the device is in proper working order.
NOTE: Life Safety detectors have an expiry date
Most smoke detectors expire 10 years after the manufacturing date, and most carbon monoxide detectors expire after 6 years. Ensure all of your smoke and carbon monoxide detectors are up to date as they may not function correctly once expired. To check your detectors, look for an expiry date listed on the back or side of the device.
When you need to replace a detector, contact Bell Smart Home to learn about your options. If you choose, or have already chosen, to purchase a replacement smoke or carbon monoxide detector from another provider, please be aware that the device will not be monitored as part of your Bell Smart Home service.
Shop The Source for Bell Smart Home batteries.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
Honeywell ADI-Motion
Battery type: one CR-123A battery
- Push the tab at the bottom of the sensor and then remove the sensor from the mounting plate.
- Note the battery orientation.
- Change the battery and mount the sensor.
2GIG PIR1
Battery type: one CR-2032 battery
- Remove the screw from the bottom of the unit and then remove the sensor from mounting plate.
- Note the battery orientation.
- Replace the battery and mount the sensor.
2GIG-IMAGE3
Battery type: two AA batteries
- Slide the sensor upwards to detach it from the back plate/mount.
- Remove the old batteries.
- Install the new batteries.
- Slide the sensor onto the back plate/mount.
2GIG 5800PIR outdoor motion detector
Battery type: four AA batteries
- Remove the screw from the bottom of the sensor and remove the front cover.
- Locate and remove the four corner screws holding the sensor to the wall bracket.
- Remove the old batteries and install new ones.
- Install the sensor back to the wall bracket.
- Replace the sensor on its mounting plate, making sure it snaps into place. Screw on the bottom of the sensor.
Shop The Source for Bell Smart Home batteries.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
2GIG_CO3_345
Battery type: one 3 V CR-123A lithium battery
- Remove the detector from its mounting base by twisting it counterclockwise.
- Note the orientation of the battery and then remove it.
- Wait at least 30 seconds before installing the new battery to ensure a proper power-down sequence.
- Install a new battery in the battery compartment observing the correct orientation.
Note: if the battery is not installed correctly, the detector will not operate and the battery may be damaged. If the battery is incorrectly inserted, remove it gently with a flathead screwdriver and correctly reinsert.
- Reinstall the detector onto the mounting bracket by turning it clockwise.
- After the power-up sequence, the green LED blinks once every 12 seconds to indicate normal operation.
PowerG flood detector 9985
Battery type: One 3 V lithium CR-123A
- Insert a flathead screwdriver into the slot and push upward to remove the cover.
- Remove the screw and separate the cover from the base.
- Note the orientation of the battery and then remove it.
- Install the battery making sure its orientation is the same as the one you just removed.
- Put the cover back on.
Call technical support at 1 877 267-2004 to confirm the battery replacement was successful and the device is in proper working order.
PowerG glass break detector 9922
Battery type: One 3 V lithium CR-123A
- Press in the snap (located on bottom of the unit) and separate the cover from the base.
- Note the orientation of the battery and then remove it.
- Install the battery into the battery clips its orientation is the same as the one you just removed.
- Put the cover back on.
Call technical support at 1 877 267-2004 to confirm the battery replacement was successful and the device is in proper working order.
2GIG_DBELL
Battery type: one CR-2032 battery
- Insert a small flathead screwdriver at the top of the back plate and separate the doorbell from the base.
- Use the battery pull tab to remove the old batteries. If the pull tab is missing, simply slide the batteries out of the compartment.
- Insert the new battery with the (+) sign facing out.
- Mount the doorbell back on the base.
Call technical support at 1 877 267-2004 to confirm the battery replacement was successful and the device is in proper working order.
2GIG_DW40
Battery type: one CR-2032 battery
- Use a flathead screwdriver to pry open the back plate.
- Gently remove the existing battery from its tray and then insert the new one, positive (+) side up.
- Snap the sensor back onto its mounting plate.
Note: Be sure not to touch the small black tamper switch located near the edge of the device, as this will disable the local bypass feature.
Call technical support at 1 877 267-2004 to confirm the battery replacement was successful and the device is in proper working order.
Shop The Source for Bell Smart Home batteries.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
2GIG_DW10_34 – thin door/window sensor
Battery type: two CR-2032 batteries
- Push the grooved tab inwards to release the sensor from the back cover.
- Noting their orientation, remove the old batteries.
- Install the new batteries.
- Reattach cover onto unit; it should snap into place.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
Honeywell 5800MINI
Battery type: one CR-2032 battery
- To remove the sensor cover, insert a flathead screwdriver into the end slot and turn 90 degrees.
- Noting its orientation, remove the old battery.
- Install the new battery with the (+) sign facing out.
- Reattach cover onto unit; it should snap into place.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
Honeywell 2GIG DW20R
Battery type: one CR2 battery
Before removing the circuit board, note that it fits inside a channel on the inside of the case. When replacing the board, ensure you slide it back into the same channel for a proper fit.
- Carefully insert a small flathead screwdriver into the notch in the sensor cover and pry open to remove the top cover.
- Remove the circuit board. The battery is attached to the end of the circuit board.
- Remove the existing battery.
- Install the new battery, ensuring the positive (+) side is facing up.
- Carefully slide the circuit board back into the sensor the same way you removed it.
- Put the cover back on.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
Honeywell 2GIG_DW40 outdoor cold weather outlet
Battery type: one CR-2032 battery
- Use a flathead screwdriver to pry open the back plate to access the battery.
- Gently remove the existing battery from its tray and then insert the new one, positive (+) side up.
- Snap the sensor back onto its mounting plate.
Note: be sure not to touch the small black tamper switch located near the edge of the device, as this will disable the local bypass feature.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
Honeywell 2GIG_5816OD
Battery type: two lithium AA batteries
- Use a flathead screwdriver to pry open the back plate to access the battery.
- Gently remove the existing battery from its tray and then insert the new one, positive (+) side up.
- Snap the sensor back onto its mounting plate.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
PowerG 4-button keyfob 9939
Battery type: One 3 V lithium CR-2032
- Remove the backside screw
- Open the cover using a screwdriver.
- Note the orientation of the battery and then push it out of its holder.
- Install new battery making sure its orientation is the same as the one you just removed.
Note: If the batteries are not installed properly, the unit will not operate and the batteries may be damaged.
- Test the unit by momentarily pressing one of the Transmit buttons. The LED should light up.
- Put the cover back on and attach with the screw.
Call technical support at 1 877 267-2004 to confirm the battery replacement was successful and the device is in proper working order.
PowerG shock sensor 9935
Battery type: One 3 V lithium CR-123A
- Insert a flathead screwdriver into the slot and push upward to remove cover.
- Remove the screw and separate the cover from the base.
- Note the orientation of the battery and then remove it.
- Install the battery making sure its orientation is the same as the one you just removed.
- Put the cover back on.
Call technical support at 1 877 267-2004 to confirm the battery replacement was successful and the device is in proper working order.
Shop The Source for Bell Smart Home batteries.
After the battery replacement, please contact us to confirm it was successful and the device is in proper working order.
2GIG Smoke, heat and freeze detector SMKT3-345
Battery type: three lithium AAA batteries
- Remove the detector from its mounting base by twisting it counterclockwise.
- Note the orientation of the batteries then carefully remove them by lifting from the “+”.
- Wait at least 20 seconds before installing new batteries to ensure a proper power-down sequence.
- Insert the new batteries, making sure their orientation is the same as the ones that were removed.
Note: if the batteries are not installed properly, the detector will not operate and the batteries may be damaged.
- Reinstall the detector on its mounting base by turning it clockwise until the mating marks align.
- After the power-up sequence, the green LED should blink once every 60 seconds to indicate normal operation.
Note: if the detector does not power up, check that the batteries are installed correctly and fully charged.
Honeywell ADI smoke detector 5808W3
Battery type: one 3 V CR-123A lithium battery
- Remove the detector from its mounting base by twisting it counterclockwise.
- Note the orientation of the battery then carefully remove it by lifting from the “+”.
- Wait at least 20 seconds before installing the new battery to ensure a proper power-down sequence.
- Insert the new battery, making sure its orientation is the same as the one that was removed.
Note: if the battery is not installed properly, the detector will not operate and the battery may be damaged.
- Reinstall the detector on its mounting base by turning it clockwise until the mating marks align.
- After the power-up sequence, the green LED should blink once every 60 seconds to indicate normal operation.
Note: if the detector does not power up, check that the battery is installed correctly and fully charged.
2GIG Firefighter
Battery type: one CR-123A battery
- Remove the cover to reveal the battery.
- Remove the old battery and wait 30 seconds.
- Install the new battery.
- Reattach the cover; you should hear a click when it engages properly.
Honeywell 5800COMBO-CN
Battery type: four CR-123A batteries
- To open the smoke detector, turn the unit counterclockwise to release it from the back cover.
- Remove the old batteries and replace them with new ones.
- Attach the sensor to the back cover and turn it clockwise to lock it into place.
Note: be sure not to touch the small black tamper switch located near the edge of the device, as this will disable the local bypass feature.
PGX901 PowerG wireless indoor siren
Battery type: 13.0-3.6V
- Find the screw that is located on the bottom of the siren.
- Use a Philips screwdriver to loosen the screw and gently remove the cover by pulling upwards.
- Observe where the battery packs are connected.
- Disconnect the battery packs from the connectors.
- Connect the new battery packs to the connectors.
- Close the cover so that the holes line up and use the Philips screwdriver to secure the screw.
Contact technical support at 1 877 267-2004 to confirm the battery replacement was successful and the siren is in proper working order.
Note: A low battery trouble condition may occur; this can take up to five minutes to clear.
PGX911 PowerG wireless outdoor siren
Battery type: 13.0-3.6V
- Locate the screw at the bottom of siren. It will be covered by a red cap. Open the cap to reveal the screw.
- Use a Philips screwdriver to loosen the cover screw and gently remove the cover by pulling the cover towards you.
- Locate the clear cover that holds the battery. Release the clear cover by lifting the tab located at the side of the plastic cover. Open the clear cover to reveal the battery.
- Observe where the battery packs are connected.
- Disconnect the battery packs from the connectors.
- Connect the new battery packs to the connectors.
- Close the clear cover where the battery sits.
- Reattach the blue and white cover onto the siren. Close the cover so that the holes line up and use the Philips screwdriver to secure the screw.
- Reattach the red cap where the screw sits.
Contact technical support at 1 877 267-2004 to confirm the battery replacement was successful and the siren is in proper working order.
Note: A low battery trouble condition may occur; this can take up to five minutes to clear.
PG9920 PowerG repeater
Battery type: NI-MH4.8V/1.3AH (4X1.2V)
- Unplug the power supply from the electrical outlet.
- Locate the screw on the side of the repeater.
- Use a Philips screwdriver to loosen the cover screw and gently remove the cover by pulling upwards.
- Locate the battery pack and gently disconnect the battery.
- Insert the new battery pack into the terminal connector.
- Close the cover so that the screw hole lines up and use the Philips screwdriver to secure the screw.
- Plug the power supply back into the electrical outlet.
Contact technical support at 1 877 267-2004 to confirm the battery replacement was successful and the siren is in proper working order.
Note: A low battery or AC power trouble condition may occur; this can take up to five minutes to clear.
PowerG temperature sensor 9905
Battery type: One 3 V lithium CR-123A
- Insert a flathead screwdriver into the slot and push upward to remove cover.
- Remove the screw and separate the cover from the base.
- Note the orientation of the battery and then remove it.
- Install the battery making sure its orientation is the same as the one you just removed.
- Put the cover back on.
Call technical support at 1 877 267-2004 to confirm the battery replacement was successful and the device is in proper working order.