Repairing M12 Battery battery pack. Charger Gives Red Green Blinking Error.

Рет қаралды 29,260

9 ай бұрын

THIS VIDEO IS NOT ADVICE OR GUIDANCE! Li-ion batteries can suddenly and violently combust if shorted, mishandled, or if they just fail on their own. Actual disassembly video starts around 9:15
I show you my thoughts and approach to restoring a Milwaukee M12 RedLithium XC 6.0 battery pack that was rejected by the Milwaukee charging unit. I am not recommending you follow my steps.
Whatever you do please be careful!

Пікірлер: 30

@Brian_L_5168 2 ай бұрын

You are the genius & thank you. I have exactly the same XC 6.0 for 4 years and probably charge total TEN times maximum. My cell reads 4.0V, 3.5V, 3.6V and causing the catastrophic green/red error light. Milwaukee is making total trash b/c there are many cell imbalance in M18 XC 8.0 & 12.0. I will use your method and hope mine can be revived !

@pizzacrusher4632 17 күн бұрын

its been working great ever since. i charged again yesterday and it gets lots of use.

@Brian_L_5168 16 күн бұрын

@@pizzacrusher4632 You are indeed lucky. I balance my M12 cells and M12 charger can now charge successfully. So I decided to let it sit for 2 months and monitor individual cell during this time. One cell drops 0.02 volt daily and the other 2 cells remain constant at 4.09 volt after 2 months. There you go, LOW QUALITY Milwaukee battery. Your method gives everyone hope. The day before I use M12, I will simply balance them 😅

@toargames 17 күн бұрын

Fixed my 6.0 with balance charging. the difference in the cells was huge. one set was at 4.13V and the other two where almost 1800-2200Mah behind before reaching that voltage

@nickzigrang2664 9 ай бұрын

Thank you. I have a 6.0 that does the same thing. I never thought of isolating the the cell groups.

@V-CarChannel 17 күн бұрын

I have this same problem now hope this works

@pizzacrusher4632 17 күн бұрын

i just charged mine again yesterday and it worked great.

@user-xl5np5dp8n 8 ай бұрын

Thanks for the video. Helpful.

@hdwood76fxe 4 ай бұрын

I'm in the same boat. Fairly new, rarely used. My experience is: they have to be charged every few months even if not used. Also battery went dead in the charger but not plugged in to the wall receptacle. Maybe the charger ciuit was discharging the battery.

@ratha8665 9 ай бұрын

Thank you for taking the time to share this. I have the same issue, after coming across your video, I ran out to the garage and got the pair of bad cells on the charger. It measured 2.7

@pizzacrusher4632 9 ай бұрын

That's great! Mine is still going strong as well, and has been through 2 discharge/charge cycles already.

@Jeff-rk8hq 8 ай бұрын

Your video is an excellent explanation of what’s happening with most common tool battery issues but also if your not electricity inclined Milwaukee has probably one of the better warranty systems if your battery is within 3yrs u don’t even need the receipt

@delkeeney2471 8 ай бұрын

When I checked, I understand that the battery warranty is 2 years; not 3. Without the receipt, the company checks the date of manufacture, which may be several months different from your date of purchase. Still worth checking. My current M12 6.0ah battery that is malfunctioning is 2 years and 5 months out from date of manufacture...unfortunately.

@Jeff-rk8hq 8 ай бұрын

@@delkeeney2471 you are correct it is two on the batteries I forgot the tool is three or five, depending on the tool

@Jeff-rk8hq 8 ай бұрын

@@delkeeney2471 sorry my fault I only buy the high output batteries period and those are three-year warranty for a fact … so you must have seen the standard packs such as the xc5.0 2yr warranty unlike the xc6.0 which have 3yrs along with the othe HO packs

@danielmoore394 7 ай бұрын

Not true I called on a battery issues yesterday and was told they can do nothing without a receipt?

@V-CarChannel 17 күн бұрын

Whats funny is I used my old oem charger OEM charger and it charged with no problem

@johnnysidewayz6873 6 ай бұрын

Thanks

@derekwilley1991 3 ай бұрын

Instead of taking battery apart to balance, why couldn't you do that method with the tabs that make contact to the charger contact points. I get you were investigating, but knowing what you know now, would that be an avenue you could go down?

@losslessthoughts 6 ай бұрын

I have a M12 6.0 battery doing the same thing, flashing red and green lights. I've tried everything, it refuses to charge even though it does work and registers 2 bars in a tool. Will the service centers replace batteries?

@pizzacrusher4632 6 ай бұрын

well, many other commenters have said that the Milwaukee warranty service is pretty good. I just looked up their warranty page on the internet, and this is what it says: "Please consult the Find a Service Center page or call 1.800.SAWDUST (1.800.729.3878) to locate your nearest service facility for warranty and non-warranty service on a MX FUEL™ product, battery pack or charger. "

@user-xf4vy8xs3g 7 ай бұрын

Pretty easy to swap out the batteries, good to know

@suspectfisherman2227 7 ай бұрын

If the battery was that new I would have just sent it on a warranty claim, I think warranty is 3 years on Milwaukee batteries.

@jonanderson5137 8 ай бұрын

So... Milwaukee chargers don't utilize cell balancing even though the batteries have the hardware for it. They just let you know by blinking red and green lights . Anyone have a cell balancing charger?

@stanjuan1178 7 ай бұрын

So, here is the real question I suppose. Maybe two questions. 1) Why can't the charger balance the battery cells. 2) assuming the charger in question is just a cheap pile of crap that the great company is crapping in your expensive tool kit, would a "More Expensive" Milwaukee charger be able to balance the cells in order to correct the problem.