How To Fix Milwaukee Battery Flashing Red and Green!

When it comes to charging your power tool batteries, it’s important to know what to do when something goes wrong.

One common issue with Milwaukee chargers is a flashing red and green light, which indicates a problem with the connection between the battery and charger.

But don’t worry, there are steps you can take to troubleshoot and fix the issue.

First, try pushing the battery in with more force to ensure it’s seated correctly. If that doesn’t work, check the connections to make sure they’re clean.

Sometimes new batteries have a coating on the terminals that needs to be worn off by inserting the battery a few times.

If you’ve tried these steps and are still getting the flashing lights, it’s likely that you have a defective battery.

To confirm this, try the battery in a different charger.

Video

I have a video based on this article, watch it below, or keep scrolling for more text.

Identifying the Problem

When encountering a flashing red and green light on the charger, it indicates a problem with the connection between the battery and the charger. T

o solve this issue, I recommend pushing the battery in with more force to ensure it is seated correctly. If the flashing lights persist, I suggest checking the connections to make sure they are clean.

It’s worth noting that new batteries can sometimes have a coating on the terminals, and need to be inserted a few times before the flashing lights go away.

If you have tried these steps and are still getting the flashing red and green lights, it usually means you have a defective battery. I recommend trying the battery in a different charger to confirm this.

Troubleshooting Steps

Ensuring Correct Battery Seating

If you see flashing red and green lights on your charger, it could indicate that the battery is not seated correctly.

To resolve this issue, push the battery in with more force to ensure it is seated correctly.

You can take it out and give it a real forceful shove, you wont do any damage.

Checking Clean Connections

If you have tried seating the battery correctly but are still getting flashing red and green lights, check the connections to make sure they are clean.

Give the terminals on the battery and the charger a blow to dislodge any dust that may be stuck in there.

Identifying a Defective Battery

To confirm if the battery is indeed defective, try using it in a different charger.

If the problem persists, then it is likely that the battery is faulty and needs to be replaced.

Sam Wood

Wood by name, wood by nature. I am a fully qualified, time-served, award-winning joiner with an NVQ Level 3 in Carpentry and Joinery as well as an HNC in Construction. Beyond my joinery qualifications, I have also earned a degree in building surveying. I believe these qualifications make me perfectly positioned to provide expert advice on many different areas of DIY as well as share all of the tips I have picked up in over a decade working on building sites!

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