Replacing the batteries in an Arlo camera is straightforward, but the process varies significantly depending on which model you own. Older Arlo cameras use CR123 lithium batteries that you swap out like any disposable cell. Newer models — including the Arlo Pro 6, Pro 5S, Pro 4, and Essential series — use rechargeable lithium-ion battery packs that you either remove and charge separately or charge in place via USB-C. This guide covers both, so you can find the right steps for your camera quickly.
Which Battery Does Your Arlo Camera Use?
| Camera | Battery Type | Removable? |
|---|---|---|
| Original Arlo Wire-Free | 4x CR123 lithium (non-rechargeable) | Yes |
| Arlo Pro / Pro 2 | Rechargeable lithium-ion pack | Yes |
| Arlo Pro 3 / Pro 4 / Pro 5S | Rechargeable lithium-ion pack | Yes |
| Arlo Pro 6 | Rechargeable lithium-ion pack (USB-C) | Yes |
| Arlo Essential / Essential XL | Built-in rechargeable lithium-ion | No — charges in place |
Original Arlo Wire-Free: CR123 Battery Replacement
The original Arlo Wire-Free camera runs on four CR123 lithium batteries. According to Arlo, these last approximately 4–6 months based on five minutes of active use per day. In practice, battery life varies — high-traffic locations, cold temperatures, and frequent Live View use all shorten that estimate. The Arlo app displays the remaining battery level, so check it regularly rather than waiting for an alert.
To replace the batteries, locate the latch on the bottom of the camera and slide it to one side to remove the rear battery cover. Pull out the four depleted CR123 cells, insert four fresh ones with the correct +/− orientation, and snap the cover back into place. The camera should automatically re-sync with the base station. If it doesn’t, hold the camera within a few feet of the base station, press the sync button on the base station for two seconds, then press the sync button on top of the camera for two seconds. A rapidly blinking blue light confirms a successful sync.
For battery choice, Energizer CR123 lithium batteries are the most reliable option. Off-brand CR123 cells are available at lower prices but tend to fall short of name-brand lifespan. Avoid alkaline CR123 alternatives — they drain significantly faster and aren’t worth the modest price saving.
If you’d prefer a rechargeable option, Arlo has partnered with Tenergy to offer compatible rechargeable RCR123A batteries. Look specifically for cells marked Works with Arlo — not all rechargeable CR123 cells are compatible, and using the wrong voltage can cause issues with the camera. Over time, rechargeable batteries save a considerable amount compared to repeatedly buying disposables, particularly for vacation homes or high-traffic cameras.
Vacation home tip: If cameras are monitoring a property you visit infrequently, keep a spare set of batteries at the property and check battery status in the Arlo app at least monthly. Running out of battery remotely is a frustrating and avoidable situation.
Arlo Pro 3, Pro 4, Pro 5S, and Pro 6: Rechargeable Battery Pack
These models use a removable rechargeable battery pack that slides out of the camera body. The design is modular — the camera and battery sit together inside a protective housing, and removing the battery requires ejecting the camera from the housing first.
Step 1: Remove the camera from its mount.
Step 2: Press the button next to the charging port on the underside of the camera. A click will occur and the camera slides partially out of the housing.
Step 3: Pull the camera fully out of the housing.
Step 4: Slide the battery out of the camera body.
Step 5: Insert a fully charged replacement battery, slide the camera back into the housing until it clicks, and remount.
The Arlo Pro 6 additionally supports USB-C charging in place — plug a USB-C cable directly into the port on the side of the camera to charge it without removing it from the mount. A full charge takes approximately 2–3 hours. This is convenient for routine top-ups, though removing and swapping a spare battery is faster when the camera is fully depleted.
For high-traffic locations or cameras in hard-to-reach spots, the Arlo Extended Battery and Housing is worth considering. It offers roughly double the capacity of the standard pack and is compatible with the Pro 3, Pro 4 and Pro 5S. Keeping one spare battery charged and ready means zero downtime when the installed battery needs recharging.
Arlo Essential and Essential XL: Built-In Battery
The Essential series uses a built-in non-removable rechargeable battery. There’s no pack to swap — instead, the camera charges in place via a magnetic charging cable. Unmount the camera, connect the magnetic cable to the charging port, plug it into a USB power adapter, and allow 2–3 hours for a full charge before remounting.
Because the battery can’t be swapped, the Essential does have a downtime disadvantage compared to the Pro series. Plan to charge it during a low-activity period — early morning works well for most homes. Additionally, if the battery eventually degrades after years of use and no longer holds a full charge, the camera will need to be replaced rather than just the battery.
How to Extend Battery Life on Any Arlo Camera
A few settings adjustments consistently improve battery longevity across all Arlo models. First, reduce clip length — shorter recordings per event consume less power. Second, adjust motion sensitivity to avoid false triggers from passing cars or tree movement. Third, limit Live View usage, as active streaming is one of the fastest ways to drain any Arlo battery. Finally, cold temperatures reduce effective battery capacity on all lithium cells, so cameras in northern climates during winter will need more frequent attention regardless of model.
Frequently Asked Questions
What batteries does the original Arlo Wire-Free camera use?
Four CR123 non-rechargeable lithium batteries. Energizer CR123 lithium cells are the recommended choice. Rechargeable RCR123A options are available but must be specifically marked “Works with Arlo” to ensure compatibility.
How long do Arlo batteries last?
Arlo estimates 4–6 months on the original Wire-Free model under standard use. Pro series cameras with rechargeable packs typically last 3–6 months per charge depending on activity, settings, and temperature. High-traffic locations and frequent Live View use shorten these estimates considerably.
How do I check battery level on an Arlo camera?
Open the Arlo app and go to Settings → My Devices, then tap your camera. The battery percentage is displayed there. The app also sends a low-battery notification when charge drops to 20% — however, replacing or recharging around 30% avoids unexpected shutdowns.
Can I charge an Arlo Pro 6 without removing it from the mount?
Yes. The Arlo Pro 6 has a USB-C port that allows in-place charging. For a faster turnaround, swapping in a pre-charged spare battery is more practical when the camera is fully depleted.
My Arlo camera didn’t re-sync after a battery swap — what do I do?
Hold the camera within a few feet of the base station. Press the sync button on the base station for two seconds, then press the sync button on top of the camera for two seconds. A rapidly blinking blue light on the camera confirms a successful sync.
