I'm curious how others deal with Milwaukee tool batteries. I've noticed a troubling trend where M12 batteries are prone to cracking; the 2Ah ones tend to swell and implode, while the 5Ah batteries often break where they connect to the tool. After about two years of use, they start losing charge and require frequent recharging. The 18V batteries have been cracking and splitting after just a year. Some of my experiences even included a battery catching fire! It's frustrating seeing these tools become cheaper-feeling yet more expensive, especially when they don't seem to meet the advertised torque numbers. I use these tools in a heavy work setting, so I wonder if anyone else is facing similar problems.
4 Answers
It is all the batteries … M18 and Fuel tool batteries. I’m going to try to lube the latches but it is a defect in the design.
I’ve been using M12 tools professionally for over 14 years, and I've only had one battery fail after about a decade. I think it really depends on how you treat your tools. I tend to take good care of mine – they’re not just tossed around. If you’re having multiple batteries fail, it might be worth checking how they’re being stored and used, especially in a heavy-duty work environment, where they can take a beating.
I totally get where you’re coming from, but my experience has been different. I’ve also got a collection of M12 batteries that are still going strong after 5 years, likely because I handle my tools with care. It’s concerning to hear about these defects; maybe there are quality control issues cropping up as the brand scales?
That sounds rough! I’ve heard that the rapid chargers can actually cause damage to M12 batteries, so it might be something to consider. Personally, I’ve had issues with 18V batteries failing prematurely, too. It’s frustrating when you expect a brand to last, and you end up replacing tools more often than you should.