Milwaukee M18 Battery Not Charging? Help!

Hey everyone, my Milwaukee M18 battery just stopped charging. It's about a year old, and I've used it for my circular saw and drill. When I put it on the charger, the light blinks red and green, and then nothing. Anyone else had this issue? Any tips?

Hate to say it, but that sounds like a dead cell. Milwaukee batteries are great, but they do die eventually. Before you toss it, try cleaning the contacts with rubbing alcohol and a Q-tip. Sometimes oil or dust messes with the connection. Also, make sure the charger is genuinely Milwaukee and not some knockoff. I've seen cheapo chargers cause issues too.

Yeah, clean contacts is step one. Also, try leaving it on the charger for a few minutes if the light stops blinking. Once, my battery did that and after like 10 minutes it started charging. If that doesn't work, you might have a warranty claim—Milwaukee covers 2 years on batteries. But if it's out of warranty, you might have to buy a new one. Costs like $100, but it's worth it for the power.

Thanks guys. I'll try cleaning the contacts, but if it doesn't work, I'll check the warranty. I wasn't sure if they'd cover it, but good to know. Appreciate the help!

No problem! Let us know how it goes. If it's the battery, just remember to not over-discharge it next time. That's what kills them. Keep it charged up, and use the hammerhead mode on your drill when you're driving big screws, haha.