Backup Battery for GC3 & GC3e

Average rating:

(based upon one review)

The 2GIG BATTERY-GC3 is the backup battery for a 2GIG GC3 or 2GIG GC3e. This battery keeps the system powered if the transformer is unplugged or if the electricity goes out. The battery needs to be replaced every few years with a new one. Purchase the 2GIG BATTERY-GC3 from Alarm Grid.
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If you need a new backup battery for a 2GIG GC3, 2GIG SP1, or 2GIG GC3e, then the 2GIG BATTERY-GC3 is the solution for you. This battery will keep the system running in case the transformer is unplugged or if the electricity ever goes out. This is a lithium-polymer battery with 3.7V, 2500mAh of power.

When the system is running on AC power, the backup battery will be slowly storing power. This way, it will be ready as soon as a power outage occurs. The system will switch over to the battery backup and remain running. The backup battery will temporarily keep the system running until it drops below a certain voltage. The panel will then power down completely. The 2GIG BATTERY-GC3 can provide a 2GIG GC3, 2GIG SP1, or 2GIG GC3e with up to 24 hours of backup power.

Eventually, the backup battery will no longer be able to store a charge. This usually happens after about three to five years of use. You can tell a battery needs to be replaced when the device that's using it begins to display a low battery condition, even though there has been no power outage. This low battery condition may be constant, or it may be random. You also may notice that in the event of a power outage, a low battery condition comes up on the panel much sooner than expected. Once this happens, the old battery will need to be replaced with a new one that can store a sufficient charge. A user can purchase this replacement battery, power down the unit, open it up, swap out the battery, close the panel, then reconnect AC Power. For those customers who are monitored, be sure to put the system on test with the monitoring station prior to opening the panel to prevent a call regarding the system tamper.


  • Product Type: Backup Battery
  • Compatibility: 2GIG GC3, 2GIG GC3e
  • Power Rating: 3.7V 2500mAh
  • Maximum Power Time: 24 Hours

Brand: 2GIG

2GIG BATTERY-GC3 Compatible Products

2GIG GC3PK - GC3, 3 door/window sensors, 1 motion, and key fob kit
Factory Packaged GC3, 3 wireless door/window sensors, 1 wireless motion, and a key fob kit
2GIG GC3 - DIY Wireless Security System w/ 7" Screen
DIY Wireless Security System w/ 7-inch Screen
2GIG GC3e Verizon-LTE 10-1 Kit - Wireless Encrypted Alarm System, 10 Door/Window Sensors, Motion, 1 8-ft Cable
2GIG GC3e Verizon-LTE 10-1 Kit
Wireless Encrypted Alarm System, 10 Door/Window Sensors, Motion, 1 8-ft Cable
Good Backup Battery
Submitted on 09/28/2020 Alarm Grid

The 2GIG BATTERY-GC3 is a replacement backup battery for the 2GIG GC3 and 2GIG GC3e Security Systems. A user will typically purchase this battery once the original one for their GC3 or GC3e has reached the end of its product life and its no longer capable of storing a charge. This usually happens after several years. Fortunately, the replacement 2GIG BATTERY-GC3 can be installed in the same way as the old one, and it should serve as a reliable backup power option for several years if used properly. This is a very good backup battery for a 2GIG GC3 or 2GIG GC3e, so we award it with a 5-Star rating.

There are many things to like about the 2GIG BATTERY-GC3. The battery has a maximum power time of 24 hours, which is quite long for a security system backup battery. This makes it very useful for users who may experience extended power outages. Any user who is prone to longer power outages is advised to get a power generator. The fact that the 2GIG BATTERY-GC3 has a convenient plug-in connector is also a positive attribute, as it makes the battery easy to install inside the GC3 or GC3e. We have found that the battery works reliably, which is very important for keeping the system powered on during an electrical outage.

There are not many downsides for the 2GIG BATTERY-GC3. Like any backup battery, the 2GIG BATTERY-GC3 will lose its ability to store a charge over time. This gives it a limited useful product life, and it will eventually need to be replaced. The backup battery compartment for a 2GIG GC3 or 2GIG GC3e cannot be accessed while the panel is closed, so you will need to open up the panel to remove the old battery and install a new one. But these downsides are largely insignificant, and they do not stop us from giving the 2GIG BATTERY-GC3 a score of 5 Stars.

Good: 24-Hour Max Power Time, Plug-In Connector, Reliable

Bad: Lose Ability to Store Charge Over Time, Requires Opening Panel

Bottom Line: 5 Stars

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