Battery Exhausted
Canon Digital Camera / DSLR
Severity:What Does This Error Mean?
Canon's 'Battery Exhausted' message means the camera has detected insufficient power to operate safely. This is usually a genuinely depleted battery, but it can also appear with third-party batteries or aging genuine batteries that no longer hold a full charge.
Affected Models
- Canon EOS R series
- Canon EOS 90D
- Canon EOS 80D
- Canon EOS Rebel series
- Canon PowerShot series
Common Causes
- Battery is genuinely depleted — needs charging
- Third-party battery not communicating voltage correctly with the camera
- Genuine battery aged and no longer holding full charge
- Cold weather reducing effective battery capacity
- Battery contacts dirty — poor connection
- Battery not seated correctly in the compartment
How to Fix It
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Charge the battery fully.
Use the Canon supplied charger and allow a complete charge cycle (until the indicator shows full). Quick charges may leave the battery at 70–80%, which some Canon cameras flag as insufficient for certain operations.
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Clean the battery contacts.
Use a dry cotton swab or soft cloth to wipe the gold contacts on both the battery and inside the camera. Oxidation or dirt on contacts reduces voltage delivery and can trigger false exhausted warnings.
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Remove and reseat the battery.
Take the battery out fully, wait 10 seconds, and reinsert it firmly until it clicks. A partially seated battery can report incorrect charge levels.
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Test with a different battery.
If you have a second Canon battery, try it. If the second battery works, the first has failed. If both fail, the issue may be the charger or the camera itself.
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Replace non-genuine batteries.
Third-party batteries often trigger false 'Battery Exhausted' warnings on newer Canon cameras due to missing or incorrect chip communication. Canon genuine LP-E6NH, LP-E17, or model-appropriate batteries are recommended for reliable operation.
Frequently Asked Questions
Why does my Canon say battery exhausted but the battery is charged?
The most common reasons are a third-party battery with an incompatible chip, dirty battery contacts causing a weak connection, or a genuine battery that has degraded and no longer holds enough charge to satisfy the camera's minimum threshold. Try cleaning the contacts and testing with a genuine Canon battery.