That's interesting to know! Thank you. What sort of voltage should I run it at on the bench do you reckon?It's likely below the under volt threshold Dan. If you charge it with a power supply for a little while then put it back in the Milwaukee charger it should charge.
Dont hook it up and forget, it will explode. Do you have a bench power supply by any chance?
OH HOW THE TURN TABLESTURN TABLESI’ve always left my mil walk eee or eee or battery in my Ryobi leaf blower with an adaptor and never had any issues. Guess I should disconnect it from now on?
Measure the voltage of the battery with a multimeter, then set bench supply to between 15v and 18v and current to between 200mA and 500mA. Charge until voltage is over 13v then try to charge it using the proper charger again.
Don't walk away and leave it though, over charging will make smoke.
Some people 'bump' start them from another battery but that's really hard on the cells.
This explains why it's happened with the adapter too:
I bought those last year. Really goodNeed a new drill and may as well get an impact driver while I'm at it
Any better deals/options?
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Milwaukee M18FPP2A3-0X 2 Piece M18 FUEL Power Pack
Milwaukee M18FPP2A3. M18 FUEL cordless 2 piece tool kit. The Milwaukee gen 4 twin pack with combi drill and impact driver. The Milwaukee power tool kit for all new tradesmen who want the best.www.bigredpowertools.co.uk
Amazing mate, thank you very much for this. I shall update you tomorrow when we're all stood outside by the smoking shelter doing the fire register
I did something similar with my 12Ah big b*****d battery. Flattened it and then left it in the garage during winter which just killed itPosting this incase it helps someone as I think I've knackered one of my m18 batteries!
I used it in an adapter for a ryobi tool and left it in it stupidly! In all fairness I completely forgot I did and wondered where my 6th m18 battery was and found it in the garden box in the ryobi tool.
I think the adapter connected to the ryobi tool has killed the battery sadly, maybe because the tool isn't designed for it so it's allowed the battery to fully drain?
The battery won't charge when thrown on the charger, it just flashes red and green and when pressing the battery indicator on the battery itself, nothing lights up at all.
Not bad going to say I've had milwaukee stuff for 9 years and this is my only problem, which, in turn is due to me being a berk.
Absolutely love titanic especially when they're doing the hanky panky in the back of the rover metro
Posting this incase it helps someone as I think I've knackered one of my m18 batteries!
I used it in an adapter for a ryobi tool and left it in it stupidly! In all fairness I completely forgot I did and wondered where my 6th m18 battery was and found it in the garden box in the ryobi tool.
I think the adapter connected to the ryobi tool has killed the battery sadly, maybe because the tool isn't designed for it so it's allowed the battery to fully drain?
The battery won't charge when thrown on the charger, it just flashes red and green and when pressing the battery indicator on the battery itself, nothing lights up at all.
Not bad going to say I've had milwaukee stuff for 9 years and this is my only problem, which, in turn is due to me being a berk.
I’ve always left my mil walk eee or eee or battery in my Ryobi leaf blower with an adaptor and never had any issues. Guess I should disconnect it from now on?
Measure the voltage of the battery with a multimeter, then set bench supply to between 15v and 18v and current to between 200mA and 500mA. Charge until voltage is over 13v then try to charge it using the proper charger again.
Don't walk away and leave it though, over charging will make smoke.
Some people 'bump' start them from another battery but that's really hard on the cells.
This explains why it's happened with the adapter too:
I know I know. I’ve had it for yonks and only use it to dry off my wheels when I’ve washed the car 😂
Because the cells are all connected they generally all go flat together, put a multimeter across it and see what voltage its at. The bench supply is only giving them a little charge so you won't over charge anything, you just need to get the battery above a threshold voltage for the proper charger to take over. If the battery has been flat for a long time theres a good chance its dead dead.I tried bumping my dead m12 6ah, didn’t do a thing. I might need to invest in a bench supply and put some charge into the dead cells instead.
But (probably a daft question) as they are all spot welded together would trying to put voltage into the duff ones also over charge the ok cells too?
I don't have a power supply that I can adjust... I think I might buy one🤣