Milwaukee Power Tool REDLITHIUM Comm Error: How to Fix It

Q: Why does my Milwaukee battery show a communication error?

Communication errors typically occur due to dirty contacts, low battery charge, temperature extremes, or internal electronic failures in either the battery or tool.

Q: Can I fix a Milwaukee REDLITHIUM battery myself?

Basic troubleshooting like cleaning contacts and resetting the battery can be done yourself, but internal battery repairs should be left to professionals due to safety concerns with lithium-ion cells.

Q: How long do Milwaukee REDLITHIUM batteries last?

Milwaukee REDLITHIUM batteries typically last 3-5 years or 500-1000 charge cycles with proper care, depending on usage patterns and storage conditions.

Q: Is my Milwaukee tool covered under warranty for this error?

Milwaukee tools and batteries come with manufacturer warranties that may cover communication errors. Check your warranty documentation or contact Milwaukee customer service for specific coverage details.

Abstract

The Milwaukee REDLITHIUM Comm Error occurs when your Milwaukee power tool cannot establish proper communication with the battery's electronics. This prevents the tool from recognizing the battery status, charge level, or safety parameters, making the tool inoperable.