Open the camera and remove the old battery

The battery compartment on a Blink camera is on the back or bottom of the device, depending on your model. Look for a small slot or seam running along the edge — this is where the cover slides off. Use your fingernail or a plastic spoon handle to gently pry the cover away from the body. Do not use a metal tool, which can scratch the plastic or slip and damage the lens.

Once the cover is off, you will see two AA batteries sitting side by side in a plastic tray. Note which direction they face — the flat end (negative) and the bumpy end (positive) matter. Pull both batteries straight out toward you. If they are stuck, wiggle them gently side to side first, then pull. Do not force them, or you risk bending the metal contacts inside the compartment.

Key Takeaways

  • Blink cameras use two AA batteries that typically last one to two years depending on how often the camera records.
  • Always replace both batteries at the same time, even if only one appears dead, because mismatched battery ages can cause the camera to malfunction.
  • Insert new batteries with the positive end (the bumpy side) facing toward the spring contact at the top of the compartment.
  • The camera will reconnect to your Blink app within 30 seconds after you close the battery cover, and you will see a green checkmark next to the camera name.

Insert the new batteries correctly

Use two fresh AA batteries — alkaline batteries work best for Blink cameras. Do not mix old and new batteries, and do not use rechargeable batteries unless they are specifically rated for Blink devices (most rechargeable AA batteries have a lower voltage and will drain faster). Hold the first battery with the positive end (the bumpy bump) pointing up toward the spring contact you see at the top of the slot.

Slide the battery into the left slot first, positive end up. You will feel a slight resistance as the spring makes contact — this is normal. Repeat with the second battery in the right slot. Both batteries should sit flat and flush with the tray. If one battery is sticking up higher than the other, remove it and reinsert it, making sure the positive end is making firm contact with the spring.

Close the battery cover and wait for reconnection

Slide the battery cover back onto the camera body. Push it firmly until you hear or feel a small click — the cover should sit flush with no gaps. The camera will power on automatically and begin reconnecting to your Blink system. This usually takes 15 to 30 seconds.

Open your Blink app on your phone and look at the camera thumbnail. You should see a green checkmark appear next to the camera name, which means it has reconnected successfully. If the checkmark does not appear after one minute, try closing and reopening the app. If the camera still shows as offline, remove the battery cover again, take out the batteries, wait 10 seconds, reinsert them, and close the cover.

Common mistakes that prevent the camera from working

The most frequent error is inserting batteries backward — with the negative (flat) end facing the spring contact. This will prevent the camera from powering on at all. If your camera does not turn on after you close the cover, open it again and check the direction of both batteries. The positive end must face up toward the spring.

Another common problem is leaving the old batteries in the compartment while inserting new ones. Always remove both old batteries completely before putting in new ones. Mixing old and new batteries can also cause the camera to behave erratically — it may disconnect frequently or fail to record motion. Replace both batteries together, even if only one seems dead.

Do not overtighten the battery cover. It should slide on smoothly and click into place, but you do not need to force it. Forcing the cover can crack the plastic or misalign the battery contacts, which will prevent the camera from powering on properly.

When to replace batteries and what to expect

Blink camera batteries typically last between one and two years, depending on how often the camera records motion. If your camera is in a high-traffic area and records 10 to 20 times per day, batteries may last closer to one year. If the camera records only a few times per week, they may last two years or longer. The Blink app will send you a notification when battery levels drop to 10 percent, giving you time to buy replacements before the camera goes offline.

After you install new batteries, the camera will resume normal operation when ready. You do not need to reset the camera, re-add it to your system, or change any settings. The app will continue recording to your existing system and cloud storage without interruption.

Troubleshooting if the camera still does not work

If the camera remains offline after battery replacement and reconnection, check that your Wi-Fi network is working and that the camera is within range of your router. Move the camera closer to the router temporarily and see if it reconnects. If it does, the issue is signal strength, not the battery.

If the camera still will not reconnect even when moved closer to the router, the battery compartment contacts may be dirty. Remove the batteries again, and use a dry cotton swab to gently wipe the metal springs and contacts inside the compartment. Reinsert the batteries and close the cover. If the camera still does not power on, contact Blink support — the device may have a hardware fault unrelated to the battery.

Frequently Asked Questions

Can I use rechargeable batteries in my Blink camera?

Most standard rechargeable AA batteries have a lower voltage than alkaline batteries and will drain much faster in a Blink camera. Some rechargeable batteries rated specifically for high-drain devices may work, but alkaline batteries are the safest choice and will last longer. Check the battery packaging to confirm it is rated for use in security cameras.

What do I do with the old batteries?

Take old batteries to a battery recycling program or a retailer that accepts battery returns, such as Best Buy or Home Depot. Do not throw them in the trash. Many communities have hazardous waste collection days where you can drop off batteries for free.

Will the camera lose its recordings if I remove the batteries?

No. All recordings are stored in Blink's cloud servers, not on the camera itself. Removing the batteries will not delete any video. The camera will straightforward go offline until you install new batteries and it reconnects to your Wi-Fi network.

How do I know if the batteries are actually dead?

The Blink app will notify you when battery levels drop to 10 percent. If you do not see this notification but the camera has gone offline, remove the battery cover and check that both batteries are inserted correctly with the positive end facing up. If they are positioned correctly and the camera still will not power on, the batteries are likely dead and need replacement.

Do I need to do anything in the app before replacing the batteries?

No. straightforward remove the old batteries, install new ones, close the cover, and wait for the camera to reconnect. You do not need to remove the camera from your system or perform any steps in the app. The reconnection happens automatically.