Why Is My Arlo Pro 4 Battery Not Charging

Problem Description

If the Arlo Pro 4 battery will not charge, the cable, power source, or battery contacts may be the issue. This guide checks charging hardware and firmware status.

Why This Happens in Real Homes

If the Arlo Pro 4 battery will not charge, the cable, power source, or battery contacts may be the issue. This guide checks charging hardware and firmware status. In day-to-day use, this usually looks like Battery percentage not increasing; Charging icon missing; Camera offline while charging.

Most cases trace back to Charging cable faulty; Power adapter too weak; Battery contacts dirty. The fix works best when you go step by step instead of changing multiple settings at once.

A practical order for this issue is: Inspect Cable -> Check Power Source -> Clean Contacts -> Update Firmware. After each step, test the exact behavior that was failing so you can confirm what actually solved it.

Symptoms

• Battery percentage not increasing
• Charging icon missing
• Camera offline while charging
• USB cable connected
• Battery warm
• Charger light off

Recognize these? Here's what usually causes it.

Common Causes

• Charging cable faulty
• Power adapter too weak
• Battery contacts dirty
• Firmware update pending
• Battery end of life
• Cold temperature

Tools & Requirements

Step-by-Step Solution

1

Use the Original Arlo Charging Cable

The Arlo Pro 4 charges via the magnetic charging cable that attaches to the back of the camera. Use the cable that came with the camera — third-party magnetic cables may not make proper contact with the charging pins on the back of the Pro 4. Check that the magnetic connector snaps firmly to the charging port and does not wobble or disconnect easily.

Needed for this step

Amazon Basics USB-A to Micro USB Charging Cable...

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2

Check the Power Adapter

Plug the charging cable into a wall USB adapter that provides at least 5V/2A output. Some low-power USB ports (laptop USB, older phone chargers, TV USB ports) do not provide enough current to charge the Arlo Pro 4 battery. The camera draws about 9W during charging. Use the included Arlo adapter or a quality USB adapter rated for at least 2A.

Needed for this step

JcBlaon Outlet Extender Surge Protector - 6 Out...

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3

Clean the Charging Contacts

The magnetic charging contacts on the back of the Arlo Pro 4 and on the cable end can accumulate dirt, oxidation, or moisture that prevents a good electrical connection. Wipe both the camera contacts and the cable contacts with a dry lint-free cloth. If contacts look corroded (green or dark discoloration), gently clean them with a pencil eraser and then wipe clean.

4

Check Battery Temperature

The Arlo Pro 4 battery will not charge if the battery temperature is too hot (above 113F/45C) or too cold (below 32F/0C). If the camera has been in direct sunlight or mounted outdoors in extreme temperatures, bring it inside to room temperature and wait 30 minutes before attempting to charge. The Arlo app may show a temperature warning in the device settings.

5

Verify Battery is Not Defective

Charge the battery for at least 30 minutes and check the battery percentage in the Arlo app under Device Settings > Battery. If the percentage does not increase at all after 30 minutes of charging with a known-good cable and adapter, the battery may be at end of life. Arlo Pro 4 batteries degrade after 300-500 charge cycles. Contact Arlo support for battery replacement options.

Quick Solutions

Still having issues? This is usually the deeper cause below.

Need More Help? Arlo Support

Note: The contact information below connects you directly to Arlo's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.

How Does Arlo Compare?

Before replacing your Arlo device, see how it stacks up against alternatives in our full comparison guides.