The Nest Cam (battery) is designed to run on its rechargeable battery for weeks to months, depending on how many events it records, and it can also run permanently from its power cable. Battery life depends on activity: a camera pointed at a busy street wakes dozens of times a day and drains faster than one pointed at a quiet door. Cold weather reduces battery life, and so does a weak Wi-Fi signal, because the camera works harder to upload. Video quality settings and activity zones change how often it wakes, so a tight activity zone lengthens life.
Charge it with the supplied cable, or install the optional power cable for continuous use. A camera that will not charge may have a dirty or damaged charging contact, or a cable fault.
If the battery drops quickly or the camera reboots, test another cable and outlet and check the battery level in the app. You can estimate how long the battery will last by checking how many events the camera recorded in a day: a camera that records twenty events a day lasts much longer than one that records two hundred. Weak charging contacts, a damaged cable and a loose mount can all interrupt charging, so check them before blaming the battery. Check also whether the camera is in Battery saver mode in the app, which lowers video quality and detection frequency to extend life; turning it off gives better detection at the cost of battery.
Differential
Likely causes of “Nest Cam (battery) has power or battery problems”, and how to tell them apart
- 1
A busy scene
What separates it The battery falls in days
How to confirm Narrow the activity zones and lower sensitivity
- 2
Cold weather
What separates it Battery life is short in winter
How to confirm Charge more often or use the power cable
- 3
A weak Wi-Fi signal
What separates it The camera works harder to upload
How to confirm Improve coverage at the camera
- 4
A faulty cable or outlet
What separates it The camera will not charge
How to confirm Try another cable and outlet
- 5
A worn battery
What separates it Charge does not last
How to confirm Contact Google Nest support
Before you touch a setting
Record this first — changing settings destroys the evidence
- The battery level history
- The scene's activity and zones
- The temperature where the camera sits
- The cable used
Try in this order
0 of 9 completedCheck the battery level
ReversibleIn Google Home, the camera's settings.
Narrow the activity zones
ReversibleSo the camera wakes less often.
Improve the Wi-Fi
ReversibleA stronger signal saves power.
Charge with the original cable
ReversibleAnd a good outlet.
Consider the power cable
ReversibleFor a continuous supply.
Charge more often in the cold
ReversibleWinter shortens life.
Count the events per day
ReversibleIn the camera's history, count the events recorded in a typical day to see whether the scene is the cause.
Inspect the charging contacts and cable
ReversibleLook for dirt or damage at the camera's charging port and replace a damaged cable.
Try the power cable for a week
ReversibleIf the camera runs well on continuous power, the battery or the scene is the cause.
Model-specific
What is true of this model and not of its siblings
- Activity drives life
- Each event wakes the camera and uses battery.
- Winter
- Cold reduces the battery's capacity.
- Events and life
- Each event costs battery, so busy scenes drain faster.
- Contacts
- Dirt on the charging port interrupts charging.
- Seasonal change
- Winter reduces life noticeably.
Stop boundary
When this stops being a self-service repair
- !If it will not charge on a good cable, contact Google Nest support
- !If the battery lasts only hours on a quiet scene, ask for a replacement
- !A hot or swollen camera means stop
Evidence ledger
Sources behind this answer
Exact questions
Common questions
How long does the battery last?+
Weeks to months, depending on activity.
Does cold weather affect it?+
Yes.
Can I power it continuously?+
Yes, with the optional power cable.
Why does it not charge?+
A bad cable, outlet or contact.
How can I make the battery last longer?+
Narrow zones, lower sensitivity and a stronger signal.
Is the optional power cable worth it?+
For a busy scene, yes.