Charging A Drill Battery Without An "Official" Charger
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- Опубликовано: 25 авг 2024
- Just a quick video to show how us hobbyists can charge drill batteries with simple, inexpensive power supply boards. Also in this video is how a generic Chinesium charger works.
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You gave me an idea of charging a drill I found using a 12v RC car charger. Worked a charm.
I had one of those black and decker electric screwdrivers, it lasted me 6 years of abuse. I was impressed
Great video! Thanks! When the battery reaches the same voltage as the power supply, the current will stop flowing. That is, current drops to zero amps. No voltage differential. You can prove this by turning your power supply up by about another tenth of a volt and current will start flowing again. As you mentioned, don't do this for too long to avoid battery damage or worse.
I got inspired by your video to boost my old drill batteries that haven't worked in years and i just got them working today! Thanks very much for your video!
Don’t know enough about electricity to charge my batteries this way. Screw that I’d rather just get the stupid charger. Really cool video though it’s crazy how much science I take for granted every day
On the Makita pack you will see a yellow connector which connects to the standard Makita charger as well as the +ve and -ve terminals you used ... This way the voltage of each cell is monitored by the charger and kept within correct range ... If you were to charge by your method REPEADEDLY the cells will drift out of alignment and damage could result . Other companies appear to have this balancing circuit within each pack and not in the charger , so only have two terminals to connect to charger.
Many RC hobby stores sell balancers for batteries. it should not be overcomplicated to figure out how to hook it up and balance the batteries. Then and again, you should be able to check for an out of balance situation with a simple multimeter; just don't short out the connections.
Spot on 👍
Coming from an Amateur Radio operator, your charging video is well considered. We use buck and boost chargers all the time for the various rechargeable batteries we use daily. Several charger designs use this method. So I can say to your detracters, Very Well Done !!!
This has to be my favourite Video this year - Very well explained and presented - Great Job!
really informative and perfect timing as I've just bid and won a drill without charger. cheers
I can't believe it that's amazing WOW. And I thaught I was the only one that had a hyper tough drill 😂😂😂
In Sydney my oldest brother used to buy MAKTEC! Identical to makita! Top job.
what a great video lesson on electroincs on "power tools batteries" It's like a refresher for me and when you get older its really nice to have this kind of video to watch. thank you sir for your great video. I really enjoyed it very much. aloha from kauai ;)
Thank you for the kind words!
Good work> You explained it slowly and informatively. But I got lost in the middle as I am a plug-n-play guy. The ease of use that comes with the Chinese charger would be my choice to get the job done without having to go through all the learning and buying of other products. Thanks
FYI - How to charge info Starts @ 8:00.
Thanks. I gave up scrolling through this guy's waffle-on about his life history with drills.
Thanks
Thanks.
Buy your own awesome battery drill (or anything else) here: www.banggood.com/custlink/G3GvQlEm4y
and if you want the buck/boost converter I used: www.banggood.com/custlink/KGGYoZzZ1Y
The battery protection circuit arnt all the same...it vary from brand to brand
and pack types...but the 20.85 V most likely has a couple of mofet ( switch/Gate)...when it reach that voltage..it'll just trigger the gate..so the pack wont get over charged....
The other pins are for balance..so it'll try to charge each cell indiviually.
It's works the same as hobby Lithium balance chargers...its just has
different JACKS....You can select balance or not on a hooby charger...
different lithuim type...li po, li on. li fe....different cells qty( voltage)
It vari...some charger allow you to program....time limits, charging rate.
or lowest ...voltage...
The FAKE Imax...has pro and cons....it's dosnt have all the cool programing,
meters....ect but it'll let me charge a lithium cell ..as long as it has voltage.lmao
It's kind of a pain with a smart charger..
The real Imax wont let me charge a cell below 2.8.lmao
i have the real Imax and fake Imax That's why i didnt complain....
I recycle 18650 or drill batery , now...I repair a couple packs
yesterday...simply by locating a BELOW 2.8V cell...
some where at .36V...ect..Use the FAKE charger.lol
I simply charge the low cells to around the same voltage as the other cells..
without having to do surgery or weird charging.lmao
@@oneeyemonster3262 mofet Could you mean MOSFET Metal Oxide Semi Conductor Field Effect Transistor?
Can you post link for buck-boost digital charger?
@@joeboxter3635 Here you go: www.banggood.com/custlink/KGGYoZzZ1Y
there is actually a bit more going on inside these batteries that is good to know, in most cases the packs have a built in BMS and balancing circuit hence the separate charge pin, there is a higher voltage on the charger to make sure the charging is complete and quicker and when the pack is near it´s full charge the balancing is done, if the cells are drifting in voltage it evens them out and if you charge these packs on the output pins you won´t get proper balancing and it can lead to damage but sure this is a bit different between brands and how it is made. some chargers and batteries has a whole bunch of pins and can be separate balancing or temperature monitoring whichever can be built into the battery or the charger itself. so in conclusion the best option is to use a real charger made for the battery or if you do it yourself figure out how the battery bms is made to work and use the correct charging input for it. usually the battery has built in over and under voltage protection, it gonna turn off if too much discharged and it should also cut charging if the voltage goes too high, however if you charge on these outputs it may not be able to shut down over charge or unbalanced cells causing a fire hazard or damage to your equipment. so basically if you are not 100% sure what you are doing then prefer a dedicated charger made for this battery :)
I don´t find any chargers for car o 12V power source. Seems like they want you to buy lots of batteries to go back home to charge them. But sometimes you will need to charge them from car or solar panel. Is there a way to do so with no risk of burning them?
@@alexecheverria if you can’t find any option for a charger the best option would likely be to use a Buck-Boost unit with a constant current capability and they tend to be rather cheap to get. You can dial in the correct charging voltage and tune in the maximum charging current and you could charge your battery from pretty much any voltage you desire within the converters range. It is still hard to tell if charging your battery with another source can cause problems with it so make sure you take all safety precautions possible if doing so
@@Pulverrostmannen My poor english was not aware of "buck-boost" magic word and found a cheap one on Banggood with V and A display. Although it is not delivering more power output than imput I got a step up board to deliver 24v to it. Great advice, appreciate it!
@@alexecheverria no problem at all. Good luck with your project :)
Can't get the effing chargers mate. That's why RUclips Duh.
First I will need a magic tutorial to understand this science.
You lost me at pre cut wood. That stuff don’t grow around here. 😆
Great vid thanx for the tip!
Thanks for your great explanation. I'm a novice at electronics and 78 years old so I have to go very slow and you made it very understandable.
All "well made" Lithium Drill batteries have a 4-6s BMS in them that balance charge each 18650. The 14-21v (depending on the pack) gets divided to each battery and charge at 4.2v. The BMS is also has overcharge and undercharge protection. If you open up the casing you can charge each 18650 using any charger that has balance leads as the batteries are connected in series. The last battery in this video. That should be a balance lead connecter (that yellow connector in the middle). Using that connector you can check each batteries voltage on its own.
Be careful when saying "all" of something, check this out: ruclips.net/video/BEnYX8-Cfp0/видео.html
@@SimpleElectronics fixed it, the really really cheap stuff don't count :P But as I can see even the "High end brands" seem to be cheaping out on there components.
Yup so this is the last video I watched! I am way behind!!! Lol I’ll definitely be going through the tool haul videos! Keep up the great work!! 🤜🤛
I use a bench power supply. You can set the voltage and current limit. My power supply supply is 0 to 50 volts dc and only 1.5 amp max. . I usually set the current between 650 ma to 1 amp. I have been charging li ion batteries for years this way. By the way my power supply is from the 1970's with an analog meter. Buy a cheap Chinese model power supply with at least 0-30 volts and 3 amp capacity. Well worth it. Thanks for the video, not bad.
Thank you so much your video helped out a lot I needed to find out what NTC meant and I found out in your video and stayed tuned for more informative things so i appreciate your video and all your help bless you dude peace
Thank you for the kind words!
Thanks for the hints and helpful advice, which btw, worked for me.
an ''official'' Makita charger does something additional
- it checks the temperature, and regulates the current in behalf of the cell temperature and the possible currents without damaging the cells
- it don't charge the battery at all if it's too cold (around - 5 ° C)
- it cools down the cells first before charging if they are too hot
- it reduces the current if the SOC has reached 80 %
My batteries from 2015 are still perfectly fine despite they have been used commercially on construction sites for more than 5 years, always charged in a original Makita charger
@Uhavenoright toask an official charger is around 45 € in Europe, a 3rd party charger may save you 15 or 20 € at max. 20 € are not much over the lifespan of the device.
With Makita you get typically a lot of bang for your bucks, especially compared to European brands or German brands.
If your batteries die prematurely because the 3rd party charger stresses them more than the original one you don't save money at all.
If you want it cheaper and you don't use the tools often you can still buy corded ones, they need no batteries and no charger and will work for decades
@@simonm1447 you’re missing the point guy. Sure you can use the official charger everyone already knows and understands that.
Just because you don’t understand how to balance charge batteries don’t assume and prevent others as well. your “official”charger or nothing attitude adds nothing to this video and it’s obvious you don’t understand the topic at hand enough to make such statements. So shhh 🤫
@@josephbookim8451 Of course I know how to balance a Li-Ion battery pack, however no craftsman would invest hours of time to recharge tool batteries if he can simply put them into a charger which isn't even expensive which does all the work by itself (and charges even faster).
My oldest LXT batteries are almost 7 years old now, used commercially the whole time. They still work fine even with much more powerful machinery which wasn't even on market when I bought these battery packs.
Using self made chargers is surely a nice experiment and fine for people who want to learn something new, but no serious craftsman would do this at work
@@simonm1447 1. nobody said they were a craftsman 2. Nobody said they were trying to do this at work so what are u going on about. Again the topics on hand seem to just be flying right over you and you’re going on about something nobody brought up lol
@@simonm1447 so battery chargers charge batteries..? Cool.
Thank you sir for the education
I've been using my RC car battery charger. It has settings for every type of battery (even lead acid) and an alligator clip attachment. I stick paper clips in the battery then attach the charger.
How much does an RC battery charger costs?
@@impactajuvenile The B6 chinese knockoffs start at $25 usd... Might be ok for power tools. I got a name brand one because I use it more and to be safe with "dangerous" RC lipos.
Wow, ! thank you for simplifying this task. I live in Hawaii and no one ships lithium batteries. That is they won't fly them. So making due is neccessary. Im an electrician with plenty of motor controls under my belt. But thanks to you i don't need to do more research. I make things safely for safety.. so this will totally work. ❤ I've got a Ridgid 12 volts that are obsolete discontinued and no one will send me the charger or the battery how to have Milwaukee 12 volt . I know it's the same three cells if I can get the Milwaukee to charge the Ridgid I will make a video
Thank's for the charging info.
E-tool or EV battery pack are build indide with multipile groups. Each group is charged independantly by way of floating charging and monitoring, to limit any group over charge and over heat. If any group is over charged, it could generate over heat, causing damage or fire.
Next step: build a mating connector for the battery for easier connecting the charger.
Well, I do own a 3d printer...
see how he does with it lol
i just use the cheap chargers gut the circuit and straight lead mine to a hobby charger
I put a 5s balance lead on 20v harbor freight pack and I use a 20 dollar rc charger to charge I use the balance charge function works like a charm and a lipo fire bag
Just so you know that’s knockoff makita is an impact not a drill :-) (drills have chucks for drill bits). Thanks for the cool video !
An Impact Driver
watching this and looked out the window, tumbleweeds rolling past by the bucket load
My window as well.
I thought you were just gonna use another drill to turn the dead one backwards with a chucked bolt in the good one, pushing the trigger of the dead one to 'force-feedback' the dead battery. But you showed me how to waste time and be a cheapskate all-in-one! Oh Joy, oh Bliss!
Yea ok but just take a look at the Mikita battery. It has a yellow connector too for the BMS on the charger. Charging without the right charger will eventually kill the battery pack because one cell will eventually reverse charge.
Although this is best practice, it's not the end all be all. Many brands do not do any balancing at all, simply disallowing the charge entirely if one cell gets out of charge
Wow! indeed it is really complex for my tired brain
I use an iCharger 208B as a charger. It will charge dang near anything. I even charge my 48 volt ebike battery by splitting my pack and charging in parallel and running in series using a 4 pole double throw switch.......
It also allows lowering the charge voltage to prolong the life of the batteries and it displays Amp Hours used in charging so I can figure out AH per mile on my bike. edit: And other stuff as well such battery degradation.....
It cost some bucks but I have used it a lot for over 6 years with no problems.
Wow how simple.and easy.
You are great thank you so much for sharing your knowledge you have been teaching me so much thank you thank you
If this is meant to be learned then, I would give a thumbs for it. I think you're giving a commentary rather than showing how it's done!
Well, what wasn't clear to you in the video?
@@SimpleElectronics just go a little slower so that whatever you're saying can be understood. I found this video interesting but hard to follow. That's it.
So will you be redoing this video?
There will be a follow-up eventually but not a total redo, no
@@SimpleElectronics can you not maybe just this once repeat the main part again?
Very, very good! Thanks!
Good explanation and video. Nice filming. Keep them coming!
Very good video, iI will have to try that thanks
"I've been playing with thing" and he's going to teach us about electricity?????? Hilarious!!! Shoot maybe he knows something we don't! Thnx for the video
I find some great deals on tools and gear like this at pawn shops. Have to look around a bit and find things that have been on hand, sitting, for a while and get marked down. Recently got a Dewalt drill/battery/charger for $12, works great. Nice video here, but I'm probably going to stick with chargers.
All of that went WHOOSH over my poor old head.
If the pink bothers you; walmart also sells paint.
Wake me up when you get to the changing part
When you gave the all s*** I subbed that's awesome
Good video I'm goin try that
You should incorporate that circuitry into the existing charger housing rather than playing with clips and wires.
Lithium ion batterys can and will become unbalanced over time. All chargers are designed to balance the individual cells so they all charge evenly. My guess is there is a circuit board in with the battery that properly balances charge. If not, the charger its self does the job. Be careful when charging a battery unbalanced.
Wrong. The knock off batteries such as this one have no balancing.
I wouldn't be surprised at all if your battery(s) last 5 years charging @250ma..the touted high end 30 min and 1 hr chargers kill more cells than all other causes combined and trades people go through batteries like they were Skittles..ofcourse when shopping pros look for the best battery warranties so can just swap them in for new ones..BTW I have NiCd's that are decades old and still almost as good as new...they have never been fast charged or over charged..
Drill cells are a different breed of 18650. They are made for high discharge. Don't use anything else if you want to duplicate a drill cell pack
Are the laptop batteries the same?
@@E-hab Those are a good example of low power storage cells. The ones in power tools are much more robust
Sometimes, but not always! Gotta be careful because sometimes they just parallel up the lower current cells to provide more current!
I think this was true for Ni-Cd and NiMH cells, but aren't Most Li-ion cells ok for high discharge? There's a trade-off between cell capacity and internal resistance for sure, but cells sold for vaping are probably running harder than any power tool. You would probably be fine with those in your drill battery.
This is true, huge difference in maximum discharge current between standard 18650 and high drain 18650
Hopefully, these battery packs have internal management systems, to ensure even charge distribution over the cells that make it up.
If you are anything like me, you are allergic to the blast radius of angry battery packs.
You can find out in approx. 14 hours! I have a video coming out about that!
@@SimpleElectronics
Kewl narnies :) .
I have LOTSA batteries here, and I always watch them closely during charging, as the blast radius can be quite flammable!
thank you sir
it’s a multi voltage in series connected it can be used just only 12volts
best afforted in this plan so use this battery recovery ideas
Good luck trying to charge 18 v battery from car or boat running 12v.
This is why I kept my old 12v bosh/whatever. Old battery is in the landfill now so just plug in to the connectors and now hav a chord drill.
Works fine.
Great video
Why my ryobi 18v charger reads “0” when I test with multimeter but it still charging
Good watch, but you should have shown the "full bars" led lights on the battery at the end. Was waiting expectantly.
Good Video!!!
Does the battery pack have cell balancer electronics embedded ???
I have a video going live on Tuesday about that very subject!
Yay! I saved 30 dollars. I might burn my house down, but I saved 30 dollars? You electrically savvy folks out there know what you're doing. Some watching this DON'T. The line between fully charged and BOOM is pretty fine with Li-Ion cells. Not leaving them unattended only means you get to witness the explosion first hand. My time, body, and property are worth more than that. Just my 2 cents.
fair point, but I have a tear down of this battery coming, it isn't as dangerous as you think, (but still should never be unattended)
I suppose thats what missing an thermo resistor to measure temperature to shut the whole project down when the battery gets too warm. Thats why they have very low current flow for those cheap charger setup. You could of mentioned that.
Interesting video, a bit over my head. I'm looking to charge and 18v battery when I don't have an 18v charger. I have a 12v charger for a Milwaukee drill, a trickle charger for automotive use, and a bigger car charger. What wire goes where?
None of those options will work unfortunately
I bought 2 of those walmart drills on sale too, they have lasted longer than my Dewalts, bang for your buck.
I purchased a Chinese knock-off Makita battery with 15 Li-ion elements inside, 9.0 Ah. Heavy, I know.
With a knock-off Makita charger it charges in a couple of hours.
That's the point, you don't have all day to charge your batteries.
Does it charge in a original Makita charger? They have up to 9 Amps charging current, 3rd party chargers often only 3 Amps.
I received a drone from a friend with a battery but with no charging hub. And no one sells this old drone's charging hub online. Watched your video and am realizing it's possible to charge my drone battery... but Im realizing I need to know more about how electricity works in order to do it myself. Where did you learn? Where do you recommend that I go to learn?
At 7:30 you say it must charge through the little lead, but at the end of the video where you start charging, you only connect the big leads?
I smell a battery fire starting someplace.
Give a man a battery and he can drive a few screws. Teach him to build a battery charger and he can build a dock kit.
LAYMAN'S TERMS BUDDY
LAYMAN'S TERMS SPEED IT UP
NOBODY WANTS TO HEAR A BUNCH OF DRIBBLE
THEY JUST WANT TO KNOW HOW TO CHARGE THERE DAMN BATTERYS
Great video, thanks so much. I have a small Dremel tool that isn't made anymore, and the charger stopped working. It's a Dremel Model 1100 Stylus. It's 7.2V Do you have any ideas how I can charge the unit? Actually, I only used it a handful of times from when I purchased it way back, so the batteries really only got discharged and charged maybe 3 times total in its lifetime. So I'd really like to be able to recharge it and use it.
I don't have the same rotary tool, but I you should first determine if either the power supply or the tool is the issue. Both this and the fix will require you to open the tool, so go to someone with experience if you're not confident.
Personally, since I don't know how to troubleshoot a power supply, I would've opened up the tool and used a multimeter to check if the cells are between 3.2 and 4.2 volts. If you have a low voltage cell, you can try to revive with a short boost from a charged lithium cell and a couple of wires(RUclips vids are available). If that doesn't work, you have to buy new lithium cells of the same size(2 of them, assuming the voltage) and learn to spot weld or solder them in.
If I found the tool seemed fine, I'd try to replace the power supply with and equivalent one on eBay/Amazon.
The reason why you couldn't change the battery and the voltage would not increase is because of the resistance was too high. The amps must over come the resistance of the cells. When the battery gets older the more resistance it has and more amps it takes to charge it. If you were starting with low amps like you did in your video. I predicted the outcome before you gave up. But good video please make more.
Could you use an old train transformer to charge anything ?
With a bit of tinkering you could - you would have to rectify the AC into DC using at least a half-wave rectifier and a capacitor
will batery electronic stop the charging itself ?
I always hated how the brands lock you in to their ecosystem when they are all offering the same thing just with different colours..Hopefully I will get around to doing this so I can just buy the best value tool at the time...
I will have a video soon on adapting batteries to different brands!
The video is now live! ruclips.net/video/BEnYX8-Cfp0/видео.html
If your house burns down using a Makita charger on a Dewalt battery who you going to sue ?
Would you please tell me what kind of multi meters those black and blue ones are that you are using in this video and where did you get them? Thanks! And thanks for the video. Charging batteries is a subject I'm becoming interested in lately. Especially drill / tool batteries. 👍
Any multimeter will do but these are a house brand from a store in Canada, called Canadian Tire
"Ahhhhhh Shit" is exactly what I'm going to say when I burn down my house trying to do this. I'll just get a charger, thanks for your time.
Look for "XL6009" on ebay about $5 will charge any battery, just adjust the output to 2 or 3 volts above the battery voltage when fully charged. So to charge a 20 volt battery, set the module to 23 or 24 volts and it will be a safe and cheap way to charge any battery or power supply for any low amp device such as small radio or DVD player or LED lamp or LED light bulb etc.
@@stanleymeyer9936 great way to start a fire, here is why, the bms in these packs have a balance circuit with less than 500mA, your suggested dc-dc module has 3A output current = OVERCHARGE when the cells are out of balance, its not rocket science.
Trying to charge an 8v max dewalt battery n dont know what is what on that battery thatd be cool to see an update of the batteries if you have any new designs even to show off how youre doing this cause this pack is a different setup to have work and am curious what you think nice vid as well easy to learn
Did you just say shitully?? Sweet
Question. In theory if you have a bust charger and have another charger of exact charging spec would it not be possible to use the original top shell and jump the wires to the working base unit. That way the safteys are still In place
yup should theoretically work
I lost the charger for my Dayplus impact wrench drill. it has 6000mah and 36f written on it ?
Check the voltage with a multimeter and you should be good to follow these instructions after that
How could I get the universal charger that your using to charge the batterie?
Why not just use the jumper wires from your testing of the charger and other pack to connect this pack to the other charger?
Because it was a demonstration, that's all!
You can only do this with cheap batteries without the protection circuits of the big brand tools. Get a imax RC charger and you can safely charge any of these " unlocked " batteries of any type any voltage.
Test the Milwaukee high output batteries, I’m curious how they compare with the other ones, if they are worth shelling out a couple benjies for
I would if I had any laying around - those suckers aren't cheap!
Nearly fell asleep looking at this video
Nice theory, but...... I tried that with my Ryobi and the BMS won't let any current in. I'll have to build something to take it.
Help. "Can I use a 12.5v charger on a 6v battery for a 6v craftsman 3/8" drill?
Definitely should not
All power tools are basically the same on the inside. The only difference is - manufacturers make control boards that are designed to identify and refuse 3rd party batteries. The only purpose of this is to let them make more money off you. The Chinese have gone a different way - all their power tools use interchangeable control boards, triggers and charging boards. This is also why a Makita trigger will cost 40+ dollars, while a trigger for a Chinese drill of similar quality will only cost 1-5$ max.
Impact gun but all good thanks for the video :)
Thank you, i got a drill and the charger for the battery IMMEDITALLY stopped working
At 400ma, that'll take 13 hrs to charge!
I mean if he bough a fake battery he might buy charger as well
Can someone please tell me if I buy the dewalt 996 20v hammer drill with the Flexi volt battery with the 887 impact driver with 20v battery and Flexi cool fast charger would I be able to use the charger in the UK(England). Or would they still charge on a charger I have already.. buying these power tools from the USA is so much cheaper,they advertise the products over here but don't explain the electrical difference between the two countries..
I would email Dewalt directly and ask if you can take your American bought flexvolt charger on a trip to the UK, don't make it sound like you're buying from a different market, they don't like that!
US is 120v, UK is 240v, Read the back of the charger and see if the input voltage range is from 120-240v AC
I did find this helpful for understanding first hand the currents running through while charging. However, most powertool chargers are 1.3 to 4 amp... my question is would it hurt to bump up to say 3 amp? I also like that you mentioned about the changing balance. Those other diagnostic pins are really important in keeping things even. It can be scary to overload Li-Ion... I've done it once in my early days of experimenting (just from trying a stupid bump revive)
Good informative video! Hopefully everyone keeps in mind their safety :D
I wouldn't go too high but if you monitor it, it should be fine
Hello, I have a makita drill like yours and the battery run out of energy because of usage. The red indicator shows one blinking led, the drill wont spin and only the illuminating white led works. I charged it last night up to 20.5v with 500ma limit (it is a 3ah one), this morning I disconnected it, measured it shows 20.5, but the red led is still blinking and the drill does not work. How can I fix this? I think it has something to do with those 6 contacts with yellow plastic..
I know that those chinese replacement BL1830 boards have + and TH marked contact near it connected together with 100C thermo switch.
Warning, I know next to nothing about electronics but I want to.
Would it not be possible to make up some short leads that go from a charger and connect onto the battery making sure the connections are the same ( +to+ etc ) or am I showing my ignorance 😊
I did like the vid as you took your time to walk the view through👍👍
Yes it is possible!