How to fix your old 24v and 18v Nicad batteries. How to boost the amperage
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- Опубліковано 12 вер 2024
- if your battery is still working and charging a little bit. this will help get more run time out of your battery.
This will not repair a broken battery, only increase the amount of charge it can hold.
This is better than the Brit Awards.
Get this man to 1,000,000 subscribers ASAP!
Great tip
I have used higher voltage to fry the little hair like crystals on the anode and cathode sides of the rapping. That with what you are showing is amazing. This also only works well if the individual cells inside are not leaking. It can still work, but the other cells will be working harder and will get overcharged. The way in this video is the safest way.
Amazed that I hadn't come across this fantastic hack before. And I think I can speak for all of us here - it's Dean the Professor
Very useful tip - and from a man you can trust, as he knows what he's talking about! Thanks Dean
Funny isn't it. Someone we have never personally met and is held in high regard and trusted so much. There's not enough trustworthy people in the world like this gentleman. I hope he's happy and is making a shit ton of money from his business. Dean is a bloody *Champion!!!* 👍👍
love your channel, this week i had a bosch liion cordless screwdriver which wouldnt turn off after you released the trigger. faulty micro switch. 3 euro online plus shipping of 24 euro. had an old Dell mouse , with 3 x of these switches in it. swapped out faulty one with the dell one...bingo charlie !
Nice one.
Ditto to your comment and it feels great when you can fix a fault like this and save your machine.
Effing brilliant, *Thank You* Dean. Where you 10 years ago when I paid AUD$40 for a "new" eBay Ryobi 14.4V battery. 🤦♂️
The Ni-CAD mobile phone batteries that developed the "memory" issue were rejunivated by enterprising businesses that had a tool that did the same this but was more sysphicated and cost a lot more to bring back to life. This is going to be passed onto the person who received my old but really good Ryobi 14.4V drill.
This is greatly appreciated so *Thank You* again. 👍🥰
Excellent video. Something for me to try on my old Bosch hedge trimmer that has NiMH batteries and (used to) get used once or twice a year.
Great idea very helpful Thanks
DeanO... you a WIZARD!
good man dean mighty job
see what a guy !!, I never knew that with the older NiMh batteries. brilliant, Thanks for the interesting video :)
Glad to help
@@deandohertygreaser Hi Dean, to drain does it have to be a bulb rather than say a hosting machine with the trigger switch taped down or does that not do it?
KISS and just use the bulb is what I think is best. What you want to do is add a level of unnecessary complexity to what Dean has show to be a *very* cheap and simple method. Just my opinion and not intending to be critical of you. 😁
I started buying battery adapters for older tools
Good job. Good info!
Interesting.
Great tip!!!!
Good ole NiCads.
yes the good old days when battery fire was more of a challenge than a hazard 😂
Dean are you looking anyone to work in that shop? With an hour and a half for lunch half of Ireland would apply!!
Wouldn't you want to put a resistor in there?
What do you think a light bulb is? It's a current limited resistor that happens to have a visual indicator of current flow.
I can't say this is a good idea but the best way is open it and find which cells are shorted and apply a high current to the shorted batteries to burn out the short. Nicads do crystallize with age and time which forms an internal short. This approach seems very likely to fail for most people since it fails to address the problem with nicad batteries. The good cells will just overcharge and heat-up with this technique, but the charger can't fix a shorted cell since most nicad chargers it can't deliver enough current. Nicad chargers trickle charge, very few can fast charge.
If you apply too much current, the battery will catch fire, you failed to mention to anyone following your advice, they'd better have a fire extinguisher at hand. Yes you can burn out a short with amps, but burning out a short is more for boards, not batteries due to the fire risk. There is a device, in fact Dean highlighted it not long ago. A battery balancer which works for nicad batteries, does a similar thing as Dean demonstrated, but it does all the work, no need to add a light bulb. I'd be interested in your provable qualifications when you recommend burning out a short on a battery, I don't know any electrician who would recommend that route, in fact they'd just say replace the battery.
@@marksutherland774 burning out a short only takes a second at most. at which point the current draw drops to nothing because the short is gone. The battery will not catch fire instantly as you say. If you leave the battery connected for a long period it might but that's not what I said. I would advise that no one attempt to even think that nicads are worth the effort unless they are deathly afraid of lithium cells. i'd be interested to know how many fires you have started.
@@rmora1 I've seen a few lithium batteries go up, I work with laptops, they are more like a sparkler, pure white heat. They can burn under water. I'm new to power tools so not had a any power tool battery pop yet but it will happen at some point.
EV batteries are like laptop batteries, obviously far bigger but you're not gonna put out the fire, you're just going to make sure it doesn't catch on anything surrounding it. Damage limitation, I've seem DC jacks go on fire on larger laptops due a short and the charger doesn't have short circuit protection so Deans method may be slower but safer. I have a power supply and can crank what I want without and safety features but a dewalt charger for example will have safety features which will but power before it gets dangerous.
Look at cheap e bikes etc, there are fires caused by them on a daily basis and these battery fires are very aggressive and not easy to put out. Anyway as I said an electrician would recommend a new battery, Deans method is the safest, most won't bother opening a battery and messing about with cells, which can probably be replaced but not worth the hassle.
Does this work with the paslode nicad batteries
He did say Ni-MH (that doesn't look right) and Ni-Cad batteries. With su h a simple method I can't see a downside but then I have to wear glasses so me seeing things is well.........🤷♂️
I've an old draper impact with ni-mh batteries. You wouldn't remove 4 wheels on a charge. Very tempted to try boost the batteries but there's no battery indicator on the batteries or the machine to tell if it's working. Could I just go by the amount of time the batteries take to discharge under load or is there a risk I could over-do it and melt something. I have an adapter to convert to lithium but it's not plug and play. I'll have to sacrifice a battery casing in order to make the adapter work. Just wondering if this is worth a try first. Thanks 👍
Yes just go by how long they take to discharge on the bulb. You cannot overload them.
i forget, do nicad and hydride repair work like 12V reconditioner? i know the 12V lead acid sends a square wave pulse at a certain frequency, at a low charge, and it physically breaks up crystallization inside the cell walls
no.
👍👏👏
At first I thought it was a 12A battery!
🔋
cool. Very helpful ,just what i need.