Replace the battery by opening the camera's back panel, sliding out the old battery, and inserting a new one in the same direction

Blink cameras use two AA lithium batteries that typically last about two years before they need replacing. When the battery runs low, the Blink app sends you a notification on your phone. You do not need any tools—the battery door opens by hand. The whole job takes less than a minute.

The steps are the same whether you own a Blink Indoor, Blink Outdoor, or Blink Mini (though the Mini uses a USB power cable instead of batteries). This guide covers the battery-powered models.

Key Takeaways

  • Blink cameras use two AA lithium batteries, and you can replace them without tools or disconnecting the camera from power.
  • Open the back panel by pressing the release button or tab on the bottom or side of the camera, depending on your model.
  • Slide the old batteries out and insert new ones with the positive end (+) facing the direction marked inside the battery compartment.
  • The camera will reconnect to your network automatically once the new batteries are in place.
  • Lithium AA batteries last longer than alkaline ones in Blink cameras and are worth the extra cost.

What you need before you start

You will need two fresh AA batteries. Blink recommends lithium AA batteries over alkaline ones because they hold their charge longer in the camera's low-power design—typically lasting two years instead of one. Energizer Ultimate Lithium or Duracell Ultra are common choices and work well.

You do not need a screwdriver, wrench, or any other tool. The battery compartment is designed to open by hand. You also do not need to remove the camera from its mount or disconnect it from your network—the camera stays connected the whole time.

Step-by-step: opening the battery door

The battery compartment is on the back of the camera. Look for a small release button or tab, usually marked with an arrow or the word "OPEN." The exact location depends on your model: on Blink Indoor and Outdoor cameras, it is typically on the bottom edge; on some older models, it may be on the side.

Press or slide the release button in the direction the arrow points. The back panel will pop open slightly. Gently pull the panel away from the camera body. You will now see the two battery slots inside, usually labeled with a + and − symbol to show which end goes where.

Removing the old batteries and installing new ones

Slide the old batteries straight out toward you. They may be tight—use your fingernail or a plastic spoon handle if they are stuck, but do not force them hard enough to damage the contacts inside.

Take your two new AA batteries and check the direction: the positive end (marked with a +) should face the direction shown inside the compartment. Insert the first battery into the left slot, positive end first, and push it in until it sits flat. Repeat with the second battery in the right slot. Both batteries should sit snugly without wobbling.

Closing the panel and reconnecting

Align the back panel with the camera body and push it closed until you hear or feel a click. The panel should sit flush with the camera—if there is a gap, open it again and check that both batteries are seated all the way in.

The camera will reconnect to your Blink system automatically within a few seconds. You may see a brief blue light on the front of the camera. Open the Blink app on your phone and check the camera's status—it should show "Online" and the battery indicator should display "Good" or "Full." If it still shows low battery after five minutes, open the battery door again and make sure both batteries are pushed in completely.

Why lithium batteries last longer

Blink cameras draw very little power because they only turn on when motion is detected. Lithium AA batteries hold their charge better than alkaline batteries in low-drain devices like this. You will typically get two years from a set of lithium batteries versus one year from alkaline ones. The upfront cost is higher, but you replace them less often.

Do not use rechargeable NiMH batteries (like Eneloop or Amazon Basics rechargeable AAs) in Blink cameras. The camera's voltage detection system may not recognize them as fully charged, and they will drain faster than alkaline or lithium batteries.

What to do if the battery door is stuck

If the release button does not move or the panel will not open, do not force it—you risk cracking the plastic. Try pressing the button while gently pulling the panel away at the same time. If it is still stuck, use a plastic spoon handle or old credit card to explore gentle leverage along the seam.

If the camera has been outside in cold weather, condensation or ice may have frozen the panel slightly. Bring the camera indoors for 15 minutes and try again. If the door remains stuck after that, contact Blink support—a stuck panel usually means the camera needs service.

Frequently Asked Questions

How often do I need to replace the batteries?

With lithium AA batteries and typical motion detection use (a few alerts per day), you should get about two years. Alkaline batteries last about one year. Cameras in high-traffic areas with constant motion will drain batteries faster. The Blink app will notify you when the battery is low, usually a few weeks before it dies completely.

Can I use regular alkaline batteries instead of lithium?

Yes, alkaline batteries work fine in Blink cameras. They cost less upfront but do not last as long—usually one year instead of two. If you use the camera frequently or in a high-motion area, you will replace them more often. Lithium batteries are a better long-term choice if you want to change them less frequently.

What happens if I put the batteries in backward?

The camera will not turn on. The battery contacts inside the compartment are designed so that batteries inserted backward will not make electrical contact. If your camera does not power on after you close the panel, open it again and check that both batteries have their positive ends (+) facing the direction marked inside the compartment.

Do I need to reset the camera after changing the batteries?

No. The camera will reconnect to your Blink system automatically within a few seconds. You do not need to remove it from the app or re-add it. If the camera does not show as "Online" within a minute, check that both batteries are fully seated and that your home Wi-Fi is working.

Can I change the batteries while the camera is mounted on the wall?

Yes. You do not need to remove the camera from its mount or bracket. straightforward open the battery door from behind, swap the batteries, close the door, and you are done. The camera stays connected to power and your network the entire time.