Blink cameras use AA lithium batteries, typically two per camera

Most Blink indoor and outdoor cameras run on two AA lithium batteries, not alkaline. This matters because lithium batteries last longer in these devices—usually 2 years or more depending on how often the camera records. Alkaline AA batteries will work in a pinch, but they drain much faster and may not power the camera reliably in cold weather.

The Blink Video Doorbell is the exception: it connects to your home's existing doorbell wiring and does not use batteries at all. If you own a standard Blink camera (Indoor, Outdoor, Mini, or XT2), you will need lithium AAs.

You can find the battery type printed on the back of your camera or in the manual that came with it. The model number on the back will also tell you which generation you own, and Blink's support site lists the battery requirement for each model.

Key Takeaways

  • Blink cameras use two AA lithium batteries, which last roughly two years under normal use.
  • Alkaline AA batteries work but drain faster and perform poorly in cold temperatures.
  • The Blink Video Doorbell does not use batteries because it draws power from your doorbell wiring.
  • You can check your camera's battery type on the device itself or in the original manual.
  • Replacing batteries takes less than a minute and requires no tools.

Why lithium batteries last longer than alkaline

Lithium batteries hold their voltage more steadily over time, which means the camera gets consistent power until the battery is nearly dead. Alkaline batteries lose voltage gradually, and the camera may shut down before the battery is truly empty. In a motion-detection camera that wakes up dozens of times a day to check for activity, that steady voltage makes a real difference.

Lithium batteries also perform better in cold weather. If your Blink camera is mounted outside or in an unheated garage, alkaline batteries can fail suddenly when temperatures drop. Lithium batteries continue working reliably down to much lower temperatures.

The trade-off is cost: lithium AAs cost more per battery than alkaline ones. But because they last so much longer, the per-month cost is actually lower.

How to replace the batteries in your Blink camera

Open the battery compartment on the back of the camera. On most Blink models, you slide a small door or press a release tab. No tools are needed.

Remove the old batteries and note which way they were facing (the positive end should point toward the spring). Insert two new AA lithium batteries in the same direction. Close the compartment door until it clicks.

The camera will reconnect to your home network automatically within a few seconds. You do not need to reset anything or re-add the camera to your app. If the camera does not reconnect after one minute, remove and reinsert the batteries to may support they are making good contact.

Where to buy replacement batteries

AA lithium batteries are sold at most grocery stores, pharmacies, hardware stores, and online retailers. Common brands include Energizer Ultimate Lithium, Duracell Ultra, and store-brand equivalents. Any AA lithium battery will work—you do not need a Blink-branded battery.

Buy them in bulk if you own multiple cameras. Two cameras will need new batteries every two years or so, which adds up over time. Buying a pack of eight or sixteen batteries at once is usually cheaper per battery than buying them one or two at a time.

Signs your Blink camera batteries are running low

The Blink app will show a battery icon on the camera's live view screen. When the battery is low, the icon turns red or shows a warning message. At that point, you have days or weeks left before the camera stops working, depending on how much it records.

If the camera stops responding to motion or stops recording, the batteries are dead. Replace them and the camera will resume normal operation when ready.

Some users set a phone reminder for every two years to replace batteries on schedule, rather than waiting for a warning. This prevents the camera from going offline unexpectedly.

Troubleshooting battery problems

If you replaced the batteries but the camera still will not turn on, the batteries may not be making good contact. Remove them, clean the metal contacts inside the battery compartment with a dry cloth, and reinsert the batteries firmly. Make sure they are facing the correct direction.

If the camera still does not respond after that, try a different brand or set of lithium batteries. Occasionally a battery is defective or the compartment contacts are bent. If the problem persists, contact Blink support—the camera itself may need replacement.

Do not leave dead batteries in the camera for long periods. They can leak and damage the battery compartment, making it impossible to use the camera later.

Frequently Asked Questions

Can I use rechargeable AA batteries in my Blink camera?

Rechargeable NiMH batteries (like Eneloop) will work, but they deliver lower voltage than alkaline or lithium batteries and may not power the camera reliably. Blink does not recommend them. Stick with disposable lithium or alkaline AAs.

What happens if I use alkaline batteries instead of lithium?

The camera will work, but the batteries will drain in 3 to 6 months instead of 2 years. In cold weather, alkaline batteries may fail suddenly. Lithium is worth the extra cost if your camera is outdoors or records frequently.

Do I need to reset my camera after replacing the batteries?

No. The camera will reconnect to your network automatically within seconds. You do not need to touch the app or press any buttons on the device.

How long do Blink camera batteries actually last?

Lithium batteries typically last 2 years with normal use. Heavy use—a camera that records constantly or detects motion dozens of times daily—may drain them in 1 to 1.5 years. Light use in a low-traffic area may stretch them to 2.5 or 3 years.

Can I buy batteries directly from Blink?

Blink does not sell batteries. You can buy AA lithium batteries from any retailer that carries batteries. Any brand works—Energizer, Duracell, Amazon Basics, or store brands are all compatible.