How to Fix a Milwaukee Power Tool That Keeps Battery Not Charging

If your Milwaukee power tool isn’t charging properly, it can slow down your work and cause frustration. This guide walks you through simple, safe troubleshooting steps to resolve common charging problems, ensuring your tools stay ready for your projects.

Key Takeaways

Check the battery and charger connectionsEnsure both are properly connected and free of debris.
Inspect the battery for damage or wearLook for swelling, corrosion, or dirt that could impede charging.
Test with a known good charger or batteryIdentify whether the issue lies in the charger or the battery.
Reset or update the charger if applicableSome Milwaukee chargers may need resetting or firmware updates.
Replace the faulty component if necessaryBattery or charger replacement may be required for persistent issues.
Milwaukee M18 18V Cordless Power Tool Combo Kit, 8-Tool Set, 3 Batteries, 2 Tool Bags, Charger Included

Milwaukee M18 18V Cordless Power Tool Combo Kit, 8-Tool Set, 3 Batteries, 2 Tool Bags, Charger Included

COMPLETE KIT: Includes hammer drill, impact driver, circular saw, angle grinder, reciprocating saw, multi-tool, work light, and 3...

As an affiliate, we earn on qualifying purchases.

1. Verify the Connections

  1. Ensure the battery is properly seated in the charger, clicking into place.
  2. Check that the charger is plugged into a functioning outlet.
  3. Inspect the charging port and contacts for dirt, dust, or corrosion. Clean gently with a dry cloth or brush.
Milwaukee Shockwave 100pcs Impact Driver Bit Set Packout

Milwaukee Shockwave 100pcs Impact Driver Bit Set Packout

As an affiliate, we earn on qualifying purchases.

2. Examine the Battery Condition

  • Look for visible damage such as swelling, cracks, or corrosion on the battery terminals.
  • Try charging a different, known-good battery to see if the problem persists.

3. Test the Charger and Battery

If available, use a spare Milwaukee charger or battery to identify which component is faulty. If the replacement charges correctly, the original component needs replacement.

4. Reset or Update the Charger

Some Milwaukee chargers may have reset functions or firmware updates. Consult your user manual or Milwaukee support to perform these procedures if applicable.

5. Replace or Service Components

If the battery no longer holds a charge or the charger shows persistent error lights, consider replacing the battery with a compatible one like the Milwaukee 48-11-1850R 5.0 Ah XC Extended Capacity Resistant Battery or contacting professional service.

The Products in This Guide

BEST-SELLING TOOL SET
Milwaukee M18 18V Cordless Power Tool Combo Kit

Milwaukee M18 18V Cordless Power Tool Combo Kit

  • Weight: Varies by tool
  • Battery Capacity: 3 x 5.0 Ah + 1 compact
  • Warranty: See manufacturer details
TOP IMPACT DRIVER BIT SET
Milwaukee Shockwave 100pcs Impact Driver Bit Set Packout

Milwaukee Shockwave 100pcs Impact Driver Bit Set Packout

  • Bit Types: Screwdriver, Torx, Hex, Phillips
  • Weight: Varies by case
  • Storage: Packout case

Milwaukee M18 18V Cordless Power Tool Combo Kit

Milwaukee M18 18V Cordless Power Tool Combo Kit
OUR VERDICT
Reliable and comprehensive kit for professional use
VIEW LATEST PRICE

The Milwaukee M18 18V Cordless Power Tool Combo Kit offers a complete set of 8 tools, 3 batteries, and a charger. It’s designed for durability and versatility across various applications.

Pros:

  • Includes 8 essential tools
  • 3 powerful batteries for extended runtime
  • Durable construction and reliable performance
  • Portable tool bags for easy transport

Cons:

  • Battery life may vary with heavy use
  • Heavy for prolonged handheld use
  • No individual tool or battery included

Best for: Construction, remodeling, and maintenance tasks requiring multiple tools

Not ideal for: Casual DIYers or those needing only one or two tools

Battery Type:
Lithium-ion
Voltage:
18V
Number of Tools:
8
Batteries Included:
3
Charger Included:
Yes
Tool Bags:
2

Bottom line: A versatile, durable set ideal for professional use across various tasks.

Milwaukee Shockwave 100pcs Impact Driver Bit Set Packout

Milwaukee Shockwave 100pcs Impact Driver Bit Set Packout
OUR VERDICT
Great addition for enhancing tool versatility
VIEW LATEST PRICE

This Milwaukee Shockwave 100pcs Impact Driver Bit Set offers a wide range of bits in a Packout case, perfect for expanding your toolkit and maximizing impact driver performance.

Pros:

  • 100-piece set covers most needs
  • Durable impact-rated bits
  • Organized Packout case
  • Compatible with Milwaukee impact drivers

Cons:

  • Bulkier storage needed
  • Some bits may be redundant for basic users
  • No individual bits sold separately

Best for: Professional contractors and serious DIYers

Not ideal for: Casual users with minimal impact driver use

Number of Pieces:
100
Material:
Impact-rated steel
Case:
Packout
Compatibility:
Milwaukee impact drivers
Application:
Driving screws, bolts, fasteners
Warranty:
Limited

Bottom line: A comprehensive set that boosts impact driver versatility and efficiency.

Frequently Asked Questions

Why isn’t my Milwaukee battery charging?

Common reasons include dirty contacts, a faulty charger, or a damaged battery. Follow the troubleshooting steps to identify and fix the issue.

How can I tell if my battery is dead?

Signs include swelling, corrosion, or if it fails to hold a charge after multiple attempts. Testing with a known good charger can help diagnose the problem.

Can I update my Milwaukee charger firmware?

Some models may support firmware updates. Check your model’s manual or contact Milwaukee support for guidance.

When should I replace my Milwaukee battery?

Replace the battery if it no longer charges, shows physical damage, or has significantly reduced runtime despite proper charging conditions.

Keep Your Milwaukee Tools Charging Ready

With proper troubleshooting and maintenance, you can resolve most charging issues and keep your Milwaukee power tools performing at their best. Regularly inspect your batteries and chargers, clean contacts, and replace worn components to ensure reliable operation. Staying proactive extends the life of your tools and enhances your productivity on every job.

Affiliate disclosure: As an Amazon Associate we earn from qualifying purchases. Prices and availability are accurate as of the time of publishing.

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