CORDLESS POWER TOOL BATTERY HACK! HOW TO FIX THE DEAD ONES! STOP WASTING YOUR MONEY! TIPS AND TRICKS
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- Опубліковано 20 лис 2020
- Don’t throw your money away!! This video will show you how to bring back those dead power tool batteries back to life. We bring back a Dewalt XRP, Dewalt Nano, and Milwaukee 18 volt batteries. Please use caution when trying anything like this and remember to learn everything so you too can become a know it all.
🛑 CAUTION❗️Safety is the number one concern. These videos are for entertainment purposes. We(including but not limited to You Tube and the owners of this channel) can not be held responsible for any attempt to copy what is done. Any attempt to copy/replicate/try/redo/improve on/use any information provided here is done at your own risk - Навчання та стиль
First, I would like to say that I think that you are doing a good job of helping people learn to understand the batteries and charging systems. I want people to know that @3.54 the 20 volt reading that you got is Not the voltage of the battery that you are trying to fix. With the jumpers still attached, you are reading the voltage of both batteries wired in parallel. People who aren't really familiar with electricity can get confused by this and think that they are checking the voltage of the battery they're trying to fix.
When repairing old battery packs, most of the time you are going to have to open the case and check voltage on the individual cells. One (or more) cells has usually given up and has to be replaced. (Quick FYI, If folks won't run the battery pack completely dead and will return the discharged battery to the charger when swapped, Your batteries will last many more times.) When you do this and replace a bad cell or two, you need to have another power tool battery to cannibalize for 18650s. The 18650s from laptops and modems won't work for replacements. The cells are not strong enough for heavy discharge like a tool battery.
Remember a few years ago all the 'hover-boards' that were catching on fire? The problem with those was, the 18650s that had been installed in China were 'laptop' type 18650s and couldn't handle the heavy/rapid discharge cycle from the hover-board. They needed to be built with the high rating 'Tool' batteries but weren't (for whatever reason), and this caused them to catch on fire.
I work on all kinds of batteries and most of the batteries being replaced as dead have had one of three issues. (1) The pack was ran completely dead and then not recharged right away, (2) The battery pack was left in the back of a truck and got rain water in it. And (3) For golf-cart and automotive batteries, the water level wasn't checked and maintained... Nice Video!
Ya'll Take Care and be safe, John
Great answer
will adding water to a car battery decrease its ability to charge fully and discharge at the correct voltage and amperage?
agreeded 100 percent john doe i also have seen the samething with what you said.
My Guy !! I ALMOST just bought 2 new Batteries. @90$ each. IT WOULD of been A Waste Of Money!!! I Can't Believe they don't tell you about this. Or sell something SAFER for those NOT Skilled Enough or Afraid to Do This... It WORKED. THANK YOU !!!!
Awesome Hack Phil. Love the input and advice.
Stay safe!
Did it with my Dewald 18V XRP, runs like a champ again! Thanks for teaching this hack!
For how long ?
@@siriosstar4789 I got a good 14 hours so far!
phil thank you very informative
got gifted approx from an retired fried of mine battery tools dewalt, hitichi, makita, bosch. all battery powered all had two batteries each except makita that had three
not been used for 8 years plus
watch your video even though i never had the testing equipment but tried it as i had nothing to loose
all tools are functioning thx
Thanks for posting this. I was just able to resuscitate a 12v milwaukee battery that wouldn't charge. Didn't have any alligator clips lying around so I had to carefully use uncoiled paper clips as cables. After 20 minutes it's as good as new! Saved a few bucks and just as good, didn't have to create any unnecessary waste.
I had to hammer down a copper wire until it flattens. Then insert into the terminals. Worked like a charm.
From one know it all Phil to another great channel just found you and Subscribed! I have done this a few times over the years and it works a treat.
This guy must not be doing UA-cam anymore.
Been over a year since last video
I'm just replying cuz I'm also named phil lol
I work in this industry and this does work. The reason the chargers don't charge a "dead" battery is because its a safety issue, you don't want to charge a dead short, so most of the time you only need to "boost" the charge so the charger senses the battery, most of the time a few seconds is good enough. DO NOT leave a battery "boosting" for and extended time it may end up catching fire, especially lithium batteries can go into a "runaway" state and catch fire. Another tip that does work is put a old battery that seems "weak" in a freezer for a day and then charge.
A really great video instruction! Thanks for this!
Awesome. Going to try this. Thank you.
Phil AND all the smart people commenting and sharing your knowledge , I thank you !!!
Thank you so much for putting this video together I ended up jumping a Black & Decker 18 V that was not showing any type of charge with a 12 V Black & Decker I had and because the prongs were the same it was an easy set up that only took two minutes.
I then put it on a charger and the charger read it at that point.
Saved me at least $30!!
I have this a try with a dead 20v Black and Decker battery. 30 seconds hooked up to another 20v battery and it charged nicely. Thanks for the tip.
Excellent video.... I learned something ! THANK YOU !
This is the best battery rejuvenation video that I have seen, if it works for me. None of the other ones have ever worked for my old ryobi batteries.
Ryobi has a protector in it. You must remove the cover and get to the inner plate that sits below said safety.
Just need some security bits and remove the caps on the screws (doing so will void any remaining warranty)
@@matthewbeaver5026 awesome. Love when someone else throws in useful information. If everyone or more people would share like this, we all would get a lot more accomplished. Good going Matt. And now I [we all] know something new about Ryobi too
Great video with great tips. Thanks for sharing with us.
Thanks for that, this is exactly what we all need to know. there is too much waste due to Commercial practises.
Very cool 👍 I've got a DeWalt that's been sitting for 5 years with dead batteries, I'm going out to the barn right now and hooking it up to a Ryobi that I have that is perfectly fine, wish me luck 👍☮️
As a matter of safety it's a good idea to also check 5he cells. They may be corroded if they've sat for long periods. Like alkaline batts in things like flashlights. Also better to do this in a large well ventilated area just in case.
Meantime Phil , thanks for the informative money saving tips sales staff would never tell us. That is, if they even know.
Thanks for the tips!!👍👏😎🇺🇸
Thanks Phil. I have a small collection of dead Milwaukee 18V batteries. This will be an excellent help
Milwaukee has a five year warranty. I usually just them back and you can go on their website and print out the form so you don't have to pay shipping. They been great with replacing broken tools and batteries.
Good stuff thanks for sharing this video Phil.
There is something to be said for mains driven tools ...my original Bosch drill , about 38 years old is still 100% functional and with its original brushes..works a treat complete with chuck key.
Phil. Don't take this the wrong way... but i love you. THANK YOU for this video. I can't afford new batteries and this fixed the ones I already have. You're a Saint
It's a begining of a Bromance
If you keep using the old nicad ones make sure you fully charge and discharge them a couple of times. It will ring back the original capacity and they will work longer.
Good video Phil. I realize these hacks don’t work every time. However what do we have to lose? These were going to be thrown out. Everyone we can save, is saving money, and for the tree huggers, the planet. The negatives on replies I see are always going to be there. Like the old saying- “If we served ice cream, someone wouldn’t like vanilla”…
GOOD clear video and nice vocabulary. THX
Great tip!! Thanks Randy
Aye thats one of the best videos I seen in Months 👍
I buy "bad millwakee" batteries on a regular bases for my tools and 80 % I've brought back to life using this technique. There is a percentage that have actully failed and can't be brought back so easily but the ones that do last me years after I do this. Most importantly anyone doing this needs to take the time to learn how to use a dmm and understand at least the basics of volts amps watts and the danger. The danger comes from a lack of basic knowledge so it can be a great technique but it's a must you take the time to understand what your doing and how to properly do it and always take necessary safety measures prior to beginning because crazy things still happen to the most experienced people these people are still around doing it to this day only because they took the safety seriously before beginning each project. Good luck and enjoy saving big money I've saved literally thousands.
Great stuff mate top tips 👍
Mr. Know It All, I Do like the way you check and double check your readings, and tester. 1 wrong move it's over. This was a great tutorial on rejuvinating a dead battery that wont charge. I build 48volt 16ah bike batteries, and I picked up good info.
VERY, VERY helpfull. will try with a few batteries that i had planed to replace, Thanks very much for sharing.
Thanks for the info! I’ll give it a try! Cheers from the Bulldog 🍻
Awesome, i’ve been holding on to 3 dead ones, including a 250.00 M-18 12.0. Thanks!
Thanks dude you're really cool we'll be watching and learning and not buying batteries LOL
Thanks, Phil! Awesome video! Did you ever make a video about the shorted battery repair? I’d love to see that one!
Appreciate you helping us all!
If u
You are awesome!! You got yourself a new subscriber 😁
I had a couple of batteries that hadn’t been used for a year as they wouldn’t charge. Tried this and they work a treat.
some won't. i done it for years and eventaully they simply give up doing any trick. a few 6-12 v regular battery's. but especially lithium battery's work the best and last by trick charge the longest i've experienced. old lap top batter's work well by trick charge but can be very dangerous. i charged many . best thing is to keep the charging system built on the batery's of 4-6 small round shape. the system possitive and neg- will help prevent any extremely heating or explosion 💥. the right charging current also . even a regular automatic charging system could cause an explosion. i was lucky staying away from it wile charging it out side and in a some what protected area. 2 battery's exploded and 1 flew about 30 feet smoking hot. sounded like an M80 . never again will i trust the automatic charge set . ya i get it wrong on some forgetting charge setting . 🤔😉 lap top battery's do wonders if i do them creativly with skill some times.
@@trafficjon400 lol
OK, this is cool. I'm definitely going to try this.
I have saved a few batteries like this. Saved a Dewalt flex Volt a 100.00 dollar value. Good advice. 👌
Cool! You’ve just earned a new subscriber!
Batterys are more expensive then the tools some times but I think this will help you and im sure it's going to help me thank you
Great vid, Phil. ty
Excellent. Thank you.
Liked and subscribed! Thank you. A bunch of M18 that I thought was dead.
As these things go I just dropped off 3 batteries at the recycling center this afternoon all dewalt batteries, 2 xrp's the other a nano like the ones in this video. as it turns out I didn't have a nano charger and this battery was beat so no big loss. The Xrp's are ok for what they are , but have upgraded to the 20v lithium ion impact driver and drills. I'm going to try this on some older porter cable and a makita 9.6 which is at least 20 - 25 years old. thanks for the video well done. Wish I came across it 48 hours ago.
Sorry for your loss 🙏😢
You are my figgin' hero, dude........my friggin' hero! Liked & subbed ! Peace
Is it me or does this Dude sound Like Joe Pesci, lol
Man what an excellent Video. I dont even what to know how you figured it all out, all I know that when I purchased my first set of Milwaukee tools, all came with a battery or even a couple of batteries.. I really like Milwaukee over other brands therefore all my tools are milwaukee and if your like me, I like to keep my batteries charged and installed in each tool. I think switching out batteries is a waste of time and I like to get the jobs done rapidly. Here is why I appreciate you and thank you kindly for taking the time to record and placing this great money savings idea. I moved to Michigan from California 6 years ago and did a few adjustments to the new property upon arrival however due to bad weather conditions I had to put everything away 8n the uninsulated garage after 3 weeks of
being here in Michigan. Well a few months after almost being burried in snow, I was once again going to continue with a few small projects and I love using my tools for everything...well almost everything. Now get this, while attempting to re-charge severall batteries.....You guessed it... Failed. I thought perhaps the electric panel was not producing correct voltage. So To Make A Short Story Long! I ran to look for a Home Depot and the area where I Reside only have a Humongous Giant Store 3 times bigger than any Home Depot ive visited. well my like sucked cuz they do not supply Milwaukee tools therefore I googled the closest Depot only to be 2hrs away. With only 2 good batteries wirking, I took off to buy a few new batteries so I thought... when I walked up to the shelf OMG... MY JAW dropped to beyond the floor n then some. Jesus Christ My wallet cried and jumped out of my pocket all the way to my truck parked outside. Wow $ 99.00 was the least expensive, the one i wanted which holds charge a little more only came in a 2pk @ $269.99... really? have prices really gone up that much?... so I did the math and ordered at Home Depot Online for an entire new set with 2 chargers bunch batteries n new impacts, repsaw, woodsaw, metal saw, Vacuum etc. 4 days later ups dropped a huge box in front if my door. I was hapoy to have a new set if tools but for some reason, my old tools felt like a tool should feel like in my hand, unlike the new ones felt flimsy. My Old tooks seem to have been made better idk. with all that being said, I saved all the dead batteries hoping that one day I would find a solution and today I came across your Tutorial while looking for a way to adjust my new thermostat. thank you for saving us money n making me smarter.
Moving Forward Adam Carrillo
Thank you!!!! It worked 😊
You are the man! Thank you.
great video, good tip! thank you.
Nice job.....learned alot😊
That was awesome good tips thanks man😅
The Best! These batteries are now around $50 each and even more. For casual use the rehabilitation saves a great deal of money.
$50 bucks?? you can't post such a low amount of $$ like that and not share where you're buying your batteries!!!???
I even use Ryobi tools mainly because they're cheap to replace and their batteries are $75 a piece on a good day. I do have a couple rigid and Milwaukee those batteries are astronomical 150 plus each
@@viewthoughmyeyes what? Just get the off brand cheap ones if you need extra.
And if the capacity goes down just replace the cells with proper ones from lg or samsung.
The cells in there are cheap. A couple bucks a pop only. And the 12v ones only have 3 or 6 cells. And the 18v ones have 4 or 8 18650s in them.
These batteries really are overpriced like crazy.
And if you have old tools that are still the old nicads, you can upgrade them to lithium as well for cheap. No need for new tools.
I appreciate this, I left one of my RYOBI 18V lithium batteries out in the rain and it rendered it dead and defective I'm going to try this and see if I can't give it a fibbulator shock with another good and stronger RYOBI 18V lithium. I honestly can't thank you enough for the info.
It worked !!! Thanks you saved me 100$
Fantastic. Ty
loved it ,great vid
Years ago, YT mechanics were considered a joke. I never felt that way and have learned so much from YT I cannot even quantify it.
Absolutely impressive. The little things you do to make life easier in the long run!
Try hooking the hot wire then the ground. This should stop the sparks.
Hi
it is working! thank you!
I had seen this kind of hack on a video some time ago. Your video actually taught me something! Now I will be able to save dead batteries too. Excellent, brother, excellent. Happy to sub. You from Bklyn?
Thanks Bud! I have the same batteries you do so I shouldn't have any problem. The Milwaukee batteries have been sitting in my tool box for at least 15 years now without being charged and when I push the battery check light it gives me three bars. I also have two dead XRPs 18 vdc. This will give me something to fart around with. Thanks!
Good damn video. Thanks Phil
I know that pulsed magnetic generators work well with batteries. I've researched quite a bit and I'm working on my own version. I will charge every battery this way once it's done. I also build my batteries out of zinc gans. I hope to introduce my rechargeable home power system in a year.
what are zinc gans? but interesting.my John deer x300 lawn tractor does not seem to give much charge at all so i cleaned the charge relay helped a little . soppose to charge up to 13 volts . i used it a few times to charge battery's and better than store bought charger's. makes sense pulsed magnetic gen- work well.
where can i get a pulse magnetic generator
Great video Buddy
I just followed your example and used an 18 vdc battery to charge a 9.6 vdc SKIL cordless drill battery. The battery had not been used for about two years and showed not charge with my volt ohm meter. I touched the contacts for about 5 seconds, observed a spark and then check to see if the dead battery had a charge. My meter read 8+ volts after the brief contact! Then, I attached the charger which remained green (only one led on this charger). When I tried the charger before the procedure, the led light went out (but came back on when I detached the charger). Thank you for your How-to program :)
So cool. Thanks 😉
I've used an old computer PSU with a DC-DC step up boost converter to charge up practically dead batteries back to life. Brought back to life a 12v AGM battery that I forgot to remove the OBD connector that drained the bat to 5v. The regular charger couldn't do it but the 1200w dc-dc step up converter hooked to my old dell power supply did the job perfectly. Only cost me $20
Awesome thanks
You just saved me some money have some batteries that are doing the same, have Lowe's and home depot power tools
Brilliant 👏
For some reason, the intro made me LOL! 😆
Great information
This is nice to know !
What this shows is it taking a charge after hooking it up to the other charged battery. What it doesn't show us how long of use, of the power tool, he got from each of these charges. That's typically the issue here. It charges, sure, but the charge you get doesn't give you much time of actual use with the tool. Yes, that can vary, but a lot of time these batteries give you very little actual use of your tool.
Great to try... Some will give long charges and some won't. 😎🤘
You nailed it. Also, you can accomplish the same thing many times by putting the non-charging battery back on the charger over and over. It takes a little charge each time until the charger finally recognizes and charges it.
I was wondering the same thing.
It depends if it's just so low the charger doesn't recognize it. You may save it.
If it has a dead cell. I may charge this time but will return to this none usable state when drained.
Wow fantastic video bud. Cheers. Got a few batteries that won’t charge. And yep I’m gonna be doing this 👍👍👍
Thanks for sharing this 🤩🤩🥇🥇👍👍
Awesome, come back and tell us how you rapidly destroyed a good battery by transferring a small amount useless residual charge onto some crappy ones.👍
Like
It works. Was about to buy new battery then saw this video. works on my fatmax. connected 2 leads, pos. neg. great thanks for the video.
Fantastic and it worked
Thank you, I will try it
This works but very rare they hold up for long I've done load's
Subscribed! Going to Shane's house and see what we can do with his stockpile 😄
Thanks Phil 👍
Interesting video nice work.
freaking awesome and smart
when connecting batteries with such a high differential voltages (nano 1v - Milwaukee 18v), I would add a 12v lamp (brake lamp) in the circuit. at first the lamp will glow but will dim as the low battery charges. No high current arcing or risk of damage and the brightness will indicate progress.
@GaryInman Spot on input ma' clever friend. id rather endure head 2 toe brazilian hot wax hair removal vs the fear i have from jus plugging in one household 110v device. I wuz thinkn id add in line fuse 4 ohat + to + 12ga wire. Your 12v inline bulb assy is mo bettr. ! 👊 OP fails 2 addr liklyhood older batt's may take chg, yet only enuff amps that go dead quickly.
@@tcatco9356 I have brake lamp with alligator clips on my bench. I use it to quick check UPS batteries mostly, or a load to see how fast they drain.
Great video and ballast lamp comment.
Very cool!
I've watched several of these battery repair videos, and I've seen several times the guy says well it's dead no fixing this one, but he never opens the thing. If you can't get it to charge, and it's showing Zero volts, take the 4 screws out and look inside. There's a fuse inside. Or more like a jumper. It doesn't look like a fuse, but it can melt or even just wiggle loose. If you can tell it's tripped... Melted. You can replace it or... (I'm only telling you what I'VE done several times, I'm NOT saying it's a great idea) I've soldered a thin piece of wire across it (Thin enough, so it will melt if it overloads). You're not on the batteries, so you shouldn't have to worry about puncturing one of them. Or you could splice a real fuse in there. I've fixed more like that than I have by jumping them.
Saved all my Milwaukee batteries doing this good looking out buddy almost bought new batteries
You got me at "what would be more nice if you hit that like button, because I know you're liking what you see so far plus I'm saving you money:" 😂🤣😂🤣
Amazing.
great job
Or you could just buy Ridged tools with lifetime battery warranty . I'm still using the same drill I bought 17 years ago on it's
sixth set of batteries . Far better than any Dewalt I ever owned . Great video on saving old batteries . No I don't have any
connection to Ridged but it's the only battery powered tool I buy now .
I learned a long time ago that dewalt tools and battery packs are definitely NOT CONTRACTOR TOUGH as they used to advertise!
I switched to Ridgid and Milwaukee and love both of them! NO MORE YELLOW FOR ME!!!dewalt is CRAP!!
That's a good idea I olny have two chargers and two others for my weed wacker and leaf blower.
Awesome...
Sometimes individual battery cells can get reversed. You can't overcome that with two terminal charging. To over come that, charge the battery as best as you can then open it up and measure the voltage across each battery. If any of them are reversed, you need to get that cell to be positive again. Apply a voltage to just that cell in short bursts until it is at least +0.5V then charge the pack as normal and it should be back.
This is why magnetic pulse generation works great. So like quite Bidini motor used as a charger will restore most batteries that are not just trash. I think if we were to charge them every time this way it would add a ton of worth to batteries. Haven't done it but my research shows the possibilities.
🤔🤔 did not know that. Any idea as to why ?
Thanks !
Thats right . i for got to do that for rembering months to even years its the only practical way.
@@FourbrrlGrabber the batteries haven't been brought back to life, what is actually happening is the BMS has sensed the cell voltage is too low or unbalanced from over discharge. it cut the output of the pack to stop cells being permanently damaged or exploding. pack goes into hibernation. charger is designed to sense this and not charge an over discharged battery as a precaution, when you apply power into the output of a "dead" battery, it bypasses the BMS. "the built in safety system". I have performed this 72 times and only 3 failed. first failure just melted the pack,,,, second failure burned down the shed, not a great deal,, the third failure caused 4.3milion dollars damage to the complex I was living in. if you think these odds are good,,, give it a go,, if you do a lot of them, it will end in sadness eventually unless you have all precautions in place.
I recently decided to go back to plug-in power tools because of this problem, and the problem of discontinued equipment. Also, Phil has the best accent ever (I have a very pronounced accent myself)
They work great till you're on a job with no power or total gross failure. Good to have it all
Same. I've been buying all new corded tools and even bought a little dual fuel generator and an inverter for my car so I can run them any time
@@IYar56! ⁷
Yep, you can always tell an accent from Alabama.
Ees a New Yorkr or from New Joyzee. No?
Brilliant
Can you use a battery charger ? a low voltage like the type you leave your car plugged into in the winter ?
This is good to know. It is better to let some things remain unknown.
Nèw Sub! Thank you for sharimg this !
Great how to video