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Flashing Green & Red


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I bought a MILWAUKEE cordless hand drill, rechargeable battery, and I've had the battery pack on the charger but the lights are flashing green and red.  The instruction book states faulty battery... So i took it back to home depot and got it replaced with same.  Came home plugged it in, and the same thing; its flashing green and red! What the (#$&(&T%#!!!!  Should I return this one also?  Should I plug in over night? What drill should I purchase?  Any recommendations?

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It seems strange that both would have a bad battery, as it's not a common thing for a new battery to be bad.  Even though its annoying I would return it and although it's a bad first experience I still wouldn't shy away from milwaukee as they do make good tools and batteries.

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  • 2 weeks later...

I had a similar problem when I bought my M18 grease gun. It came with a battery and charger but since I already had a charger from a previous Milwaukee purchase I didn't bother to unpack the new charger. Anyway, when I placed the 1.5AH battery into my existing charger it just flashed Red/Green. I unpacked the new charger and inserted the battery and it started charging just fine. Now that it is charged it works fine on both my Milwaukee chargers. Weird, eh?

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Hats off to DAN DOODY for his post. New M18 battery inserted into new charger, RED/GREEN FLASHING LIGHTS.

I did the INSTALL/REMOVE, INSTALL/REMOVE procedure several times to clean the contacts on battery and charger and I am GOOD TO GO!!

DAN DOODY, you saved me a trip back to Home Depot, where some of the employees are currently not social distancing properly. I went in today to get the drill had the model on my phone, the guy reached out to hold my phone and reflexes kicked in. No harm, no foul, but come on, situational awareness much??

Thanks again for this forum and for Dan Doody's epic solution to my problem.

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Did anyone ask for all that political nonsense?

Pretty sure no one did.
No not really, but then again you didn't have to read it either... One man's so called (political garbage) is another man's point of view. Just saying...


Sent from my SAMSUNG-SM-T377A using Tapatalk

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On March 30, 2020 at 9:18 PM, CrustyOldSailor said:

Hats off to DAN DOODY for his post. New M18 battery inserted into new charger, RED/GREEN FLASHING LIGHTS.

I did the INSTALL/REMOVE, INSTALL/REMOVE procedure several times to clean the contacts on battery and charger and I am GOOD TO GO!!

DAN DOODY, you saved me a trip back to Home Depot, where some of the employees are currently not social distancing properly. I went in today to get the drill had the model on my phone, the guy reached out to hold my phone and reflexes kicked in. No harm, no foul, but come on, situational awareness much??

Thanks again for this forum and for Dan Doody's epic solution to my problem.

 

I followed the same advice and still getting the green red alternating. Frustrating. It can flash like that all it wants but I refuse to get into the Xmas spirit! It's the end of May after all. So I unplugged the charger and let it sit for 20 minutes. Plugged it back in, put a battery in and solid red light! Back in business. 

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On 3/31/2020 at 7:03 AM, CrustyOldSailor said:

Hats off to DAN DOODY for his post. New M18 battery inserted into new charger, RED/GREEN FLASHING LIGHTS.

I did the INSTALL/REMOVE, INSTALL/REMOVE procedure several times to clean the contacts on battery and charger and I am GOOD TO GO!!

DAN DOODY, you saved me a trip back to Home Depot, where some of the employees are currently not social distancing properly. I went in today to get the drill had the model on my phone, the guy reached out to hold my phone and reflexes kicked in. No harm, no foul, but come on, situational awareness much??

Thanks again for this forum and for Dan Doody's epic solution to my problem.

 

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I had same problem of flashing lights on my new battery . I tried the jump start by joining with another charged 4 Ah battery for few minutes and it got warm . Then cleaned the terminals meant to connect with charger and then charged it . Problem solved .

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I had the dreaded flashing red/green light dilemma on a new battery and charger.

I had initially plugged into an anti power surge type strip. After numerous unplugging and battery inserts, I plugged directly into an out let and it worked just fine. Must have something to do with the circuitry in the power source. 

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On 1/29/2020 at 8:14 AM, Dan Doody said:

I had the same problem and called Milwaukee tech support.  He said there is a protective coating on the terminals and you have to "slam" them in several times to get a good connection the first time. then you should be fine.

Thanks Dan Doody, I slammed it in a few times and now it seems to work great!

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With all due respect to the other authors and their experiences, this charging unit is a piece of garbage.  No one should have to fix a new $200 product by repeatedly "slamming" new batteries into a charging base (which, by the way, did not work for me). I will be returning my second Milwaukee M12 Fuel 2 Tool Combo Kit (2598-22) this week.  I opened the first kit a week ago and the charging unit kept flashing red/green with both batteries.  The two batteries worked with the drill and the impact driver out of the box, so I know they were not completely defective. After returning to a different Home Depot store after Christmas 2020 for an exchange, the same problem occurred with the second product and charger.  The drill and driver appear to be nicely made, but I will never know now.  Having worked in engineering companies my entire career, this is the product of poor electrical/electronic engineering design coupled with lousy supply chain practices.  I've owned many tools from many manufactures over the years, but I will not likely purchase Milwaukee tools again.  This has left me with a VERY poor consumer experience.  A third mask-wearing trip to Home Deport during a COVID cycle is just what I need; I thought I had left the travails of 2020 behind in the rear view mirror, but that is not apparently the case.  

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I had same issue new battery would only flash green and red. So I took the 4 screws out bottom disassembled battery completely and used a car battery charger with small clamps and connected battery charger to small prongs on the milwaukee  neg. And pos. Terminal after disassembling Milwaukee battery charged with car battery for 1 minute put it back together... charges fine now on Milwaukee charger and works great....

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