Blink cameras use AA lithium batteries, typically two per camera
Most Blink indoor and outdoor cameras run on two AA lithium batteries. Lithium batteries last longer than alkaline ones in these cameras—usually 2 years or more depending on how often motion detection triggers. The camera will send you a notification when the battery gets low, usually giving you several weeks' notice before it dies completely.
The exact battery life depends on your camera model and settings. If you have motion detection set to high sensitivity or your camera records frequently, batteries drain faster. Blink's own estimates range from 2 to 3 years for typical use, but some users report getting 3 to 4 years with lighter use patterns.
Do not use rechargeable AA batteries in Blink cameras. The voltage from rechargeable batteries is lower than what the camera expects, and it will drain them much faster or not power the camera at all. Stick with standard AA lithium or alkaline batteries from the start.
Key Takeaways
- Blink cameras use two AA lithium batteries, which last 2 to 3 years under normal use.
- The camera sends a low-battery alert weeks before the batteries die, giving you time to plan a replacement.
- Lithium batteries last significantly longer than alkaline batteries in Blink cameras and are worth the extra cost.
- Rechargeable AA batteries do not work reliably in Blink cameras and will drain much faster than disposable ones.
- Battery life shortens if motion detection sensitivity is high or the camera records very frequently.
How to replace batteries in your Blink camera
Replacing the batteries takes less than a minute. First, locate the battery compartment on the back or bottom of your camera—it is a small door or panel. Slide or unscrew it open, depending on your model. Remove the two old batteries and note which direction they were facing (the positive + end should point toward the spring inside).
Insert two fresh AA lithium batteries in the same direction as the old ones. Close the battery door firmly until you hear or feel it click. The camera will restart automatically, and you should see a blue light blink on the front within a few seconds. Open the Blink app on your phone to confirm the camera is back online—it will show the battery level as "good" or "full."
Keep the old batteries for recycling. Many retailers like Best Buy, Home Depot, and Lowe's have battery recycling bins near the customer service desk. Do not throw lithium batteries in the trash.
Lithium vs. alkaline batteries for Blink cameras
Lithium AA batteries cost more upfront—usually $1 to $2 per battery compared to $0.50 for alkaline—but they last 2 to 3 times longer in Blink cameras. Over the life of the camera, lithium is cheaper because you replace them less often. Lithium batteries also perform better in cold weather, which matters if your Blink camera is mounted outside.
Alkaline batteries work in Blink cameras and are fine if you want to test the camera or use it temporarily. However, they drain faster, especially if motion detection is active. If you plan to keep the camera running long-term, lithium is the better choice.
Brand does not matter much—Energizer, Duracell, and store brands all work the same way in Blink cameras. Buy whatever lithium AA batteries are on sale at your local store.
Why your Blink camera battery drains faster than expected
If your batteries are dying in less than a year, motion detection sensitivity is likely set too high. Every time the camera detects motion, it uses power to record and send you a notification. If your camera is pointed at a busy street, a tree that moves in the wind, or an area with frequent activity, it will drain batteries much faster than Blink's estimates suggest.
Check your motion detection settings in the Blink app. Lower the sensitivity or adjust the detection zone so the camera only watches the area you care about. You can also set a schedule so the camera only monitors during certain hours—for example, only when you are away from home. These changes can double or triple battery life.
Extreme cold also drains batteries faster. If your outdoor camera is in a freezing climate, expect shorter battery life than the standard estimates. This is normal and not a sign the batteries are defective.
What to do when your camera shows a low battery alert
When the Blink app notifies you that the battery is low, you have several weeks to replace it. The camera will keep working during this time—the alert is just a heads-up. You do not need to rush, but do not ignore it either, because once the batteries die completely, the camera stops recording and you will not receive motion alerts.
Order replacement batteries online or pick them up at a store before the alert arrives. Keep a spare set of AA lithium batteries in a drawer so you can swap them out when ready if needed. This is especially useful if you have multiple Blink cameras and want to avoid downtime.
If the camera dies before you replace the batteries, it will come back online as soon as you install fresh ones. You will not lose any settings or recordings stored in the cloud.
Blink camera models and their battery requirements
Nearly all Blink cameras use the same two AA battery setup: the Blink Indoor, Blink Outdoor, Blink Mini (wired, no batteries), and Blink Video Doorbell (wired, no batteries). The Blink XT and XT2 also use two AA batteries. If you own multiple Blink cameras, you can use the same batteries in all of them.
The only exception is the Blink Mini and Video Doorbell, which plug into power and do not use batteries at all. If you are setting up a new camera and want to avoid battery replacement, these wired models are an option, though they require an outlet or wired connection nearby.
Frequently Asked Questions
Can I use regular alkaline batteries instead of lithium?
Yes, alkaline batteries work in Blink cameras, but they drain much faster—often in 6 to 12 months instead of 2 to 3 years. Lithium batteries cost more but save money over time because you replace them less often. If you use the camera frequently or have motion detection set to high sensitivity, alkaline batteries will not last long.
Why won't my camera turn on after I put in new batteries?
Check that the batteries are facing the right direction—the positive + end should point toward the spring inside the compartment. Also make sure the battery door is fully closed and clicked into place. If the camera still does not turn on, try removing the batteries, waiting 10 seconds, and reinserting them. If it still does not work, the camera itself may be faulty.
How long does a low battery alert last before the camera dies?
You typically have 2 to 4 weeks after receiving a low battery alert before the camera stops working. The exact time depends on how much the camera is recording. Do not wait until the last minute—order or pick up replacement batteries as soon as you see the alert.
Do I need to remove the camera from the wall to replace the batteries?
No. The battery compartment is accessible from the back or bottom of the camera without removing it from the mount. You can replace the batteries while the camera is still mounted on your wall or in its stand.
What should I do with old Blink camera batteries?
Take them to a battery recycling program. Most retailers like Best Buy, Home Depot, Lowe's, and Walmart have free battery recycling bins. Do not throw lithium or alkaline batteries in the trash—they can damage the environment and are often illegal to dispose of that way.