DeWalt Ni-MH Rechargeable 18V Battery Pack Replacing/fix Dead Cells - 830
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- Опубліковано 15 кві 2019
- I like messing with batteries,, and I like fixing stuff,, so trying to fix a broken battery,, is a win win :-)
In a previous video, My fix was not optimal,, the old cells I had laying around,, was only 1,2ah,, where the DeWalt cells was 2,6ah.
Now some 1,7AH cells has surfested, and also some 3th.Part - Dewalt 18V replacement Batteries,, that we have a good look at.
[Affiliate Links]
China - Replacement cells : s.click.aliexpress.com/e/_AWh80D
UK - 3th.Part - Dewalt Battery 18v [2 Pack] : amzn.to/2V2pzoO
US - 3th.Part - Dewalt Battery 18v [2 Pack] : amzn.to/2GfJlUl
Link - DeWalt "clones" 18v NIMH : amzn.to/2PQNJwC
Link - DeWalt DCA1820 NI-MH to Li-Ion Converter : amzn.to/3yfzGXZ
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/ myplayhouse
Even just 1$ a month, comes out to the same as Binge-watching like 400+ of me Videos every month.
My PlayHouse is a channel where i will show, what i am working on. I have this house, it is 168 Square Meters / 1808.3ft² and it is full, of half-finished projects.
I love working with heating, insulation, Servers, computers, Datacenter, green power, alternative energy, solar, wind and more. It all costs, but I'm trying to get the most out of my money, and my time. - Наука та технологія
Here in the states these batteries cost 2/3 as much as the tool itself, so we typically use these batteries until heir on their last legs and then replace them. I have a new Dewalt set and it's awesome, never knew a little 20 volt impact could remove lug nuts off a car. The batteries also seem to last forever on a charge.
Hi Travis
Thank You very much! He He I can inform you that we are drooling at your prices,, you get two batteries when we get one :-/
Thank you for watching! :-)
I was wondering if your fancy battery charger could charge then discharge each cell and give you a capacity in Mah, or does it only do lithium ion batterys.
People think voltage is everything, without capacity it means nothing.
Hi zx8401ztv
Thank You very much! I do believe it can do that also with Ni-MH cells.
Thank you for watching! :-)
All good stuff. A couple of ideas... a heat gun is handy to soften glue when dismantling batteries (most dismantling jobs these days). Also, I was waiting for the sparks when you hooked up the power supply, I would put a bit more insulation on the crocodile clips just in case. Great video!
Hi Andrew Wilson
Thank You very much! glad you liked the video :-)
Thank you for watching! :-)
Wouldn't 4-5 tabbed 18650 with bms fit in there? Just bypass vertical nimh cell
To much work,, compared to what it would cost to buy one.
I wonder of the apparent high failure rate of the cells at the center of a 7-cell cluster could be because they are susceptible to the heat from the high currents used by a power tool, and with less opportunity for cooling. All the other cells are not surrounded by such heat sources on all sides.
Hi Johnnie Hougaard Nielsen
It's a good theory,, it could also be vibractions from the tool,, glad you liked the video :-)
Thank you for watching! :-)
Have you tried using a spot welder to attach the metal to the battery rather than soldering? Perhaps the soldering is the weak point?
Hi RUGGLEZ photography
Thank You very much! glad you liked the video :-)
Thank you for watching! :-)
Fedt video tak skal du have :)
HI MrMehmetKaya
My channel is English, and to make sure as many as possible, can also enjoy the comments, they are also English.
Please keep to English.
Thank you for watching! :-)
Would be interesting to see you take some protected 18650 or other Lithium Ion cells and rebuild a pack like this
Hi Web Luke
Thank You very much! Yes this tool would do good, with some Li-ion cells.
Thank you for watching! :-)
I like your channel but can you show the batteries from dewalt that is the press on housing because the ones I seen and tempted to work are the ones that you can take apart
Sorry I did not understand the question :-/
The factory batteries are how old is no screws it looks like it's pressed on but every other battery that I see half screws so you can take it apart easy I was trying to ask if you can do one with the Press on battery housing
I think that the problem with using lower capacity cells isn't that much the fact that they lose charge faster, but the fact that they also recharge faster. So, if it's a fast charger, it will murder the low capacity cells, because they will reach top of charge, while the rest is still discharged. A lot of current will continue to flow thru all cells until the entire pack is fully charged.
You have a good point there.
I avoid Ni-MH batteries whenever possible since they never seem to last and never have enough power. I have a bunch of tools that use them sitting around all with dead batteries.
Many cells - if they are not shorted - can be revived, i.e. with a Re-EMF charger that pulses a relatively high voltage but low amperage into them very quickly (in the kHz range), of course discharging and recharging them is also necessary for "conditioning" several times. The cells don't even get hot when charged with these Re-EMF pulses. The circuit is basically the same as a Joule Thief, which fires back-EMF pulses into the cell. But of course, it mustn't be overcharged with that either (which is much harder that way though).
Hi Scott Downey
I do to,, avoid Ni-MH,, It a dead technology.
Thank you for watching! :-)
Maybe you use shit chargers that are supplied with the tools?
Dewalt sells an adaptor & 18v to 20v lithium -ion batteries for this type of drill battery .
Two batteries , adaptor, and charger for $149.00
New drill charger & one battery 179.00
Hi Ringo Bingo
Thank You very much! glad you liked the video :-)
Thank you for watching! :-)
@@MyPlayHouse ... I did watch it and liked it, you are welcome!
I also disassembled two of these batteries and made one good one using your video so thank you for posting it.
Must have T type screwdriver bits
Yarh,, I need one of those.
your obsession with batteries....is shocking ;)
Hi Unkyjoe's Playhouse
MUST HAVE BATTERIES !!! glad you liked the video :-)
Thank you for watching! :-)
I guess they just spark something in him ;)
Why don't you get yourself a battery spot welder - it would make jobs like this and your battery bank so much easier. GreatScott! recently did a video on making one himself or you could get one of the kit ones he mentioned - kWeld.
Hi John Carr
Thank You very much! is planning to make a really simple one :-)
Thank you for watching! :-)
It might be a thermal issue with this battery pack, when it's always the cell that has one on top of it that dies.
Hi Seegal Galguntijak
Thank You very much! or vibrations :-?
Thank you for watching! :-)
Any battery composition is better than a Li-Po battery those things are super dangerous if anything happens to them.
Hi Hunter's Moon
The Energy density of a Li-ion battery is 0.36-0.875 (MJ/KG), TNT is 4,2,, or 10x as much,, Body fat is 38 or 9x of TNT,,, so if you ever want to lose a pound,, drop it slowly!! :-)
Thank you for watching! :-)
Once a cell goes it fucks the other cells via overheating
ahh it kind of have to short circuit,,, and many of them has safety for that.. if it is damaged it might.
morton, nimh is a waste of time. In order to make a good pack you would need to seperate each cell and stick them in the opus and run a few test cycles on them to find their capacity in mah like you do for 18650's. Then take the best 14 cells and make a new pack.
Hi David Smith
Thank You very much! Yes,, this is most likely a waste of time,, and checking all the cells,, would take a long time,, and those 3TH party batteries was like $18 I only did this much because I love fixing stuff.
Thank you for watching! :-)
👍
Hi T Komoski
Thank You very much! glad you liked the video :-)
Thank you for watching! :-)
That hammer looks a bit worn out
Hi Mr Badwrench
It a good hammer,, seen a lot of use! glad you liked the video :-)
Thank you for watching! :-)
@@MyPlayHouse I have an old very worn hammer of my own that was old when I found it on the roadside around 30 years ago and it's still my default hammer
@@mrbadwrench6708 Kind of the same here,, I got this hammer as a boy,, and it was well used even then.. We have nailed a lot :-) over the years.
Welder needed
I got a good one in a later video : ua-cam.com/video/TI_ZV-5WHi4/v-deo.html
i am confused, why bother taking apart a perfectly good battery to fix an identical working one? its not really fixing anything. also you cannot mix cells of different capacities! they all have to match otherwise the smallest capacity battery will go bad first.
Hi kevin campbell
Thank You very much! I do believe I said stuff exactly like this,, not sure you watched the video closely enough.
Thank you for watching! :-)
put 18650 batterys in to it
Hi DDICyber
Thank You very much! I did also think of that..
Thank you for watching! :-)
#6
Hi MarkusTegelane
Thank You very much! glad you liked the video :-)
Thank you for watching! :-)
But after seeing this i think its easier just to buy the third party battery and make it a day
I do not disagree :-)
First! At last :D
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Drdricky Bobby
Hi bgriffis420
Sorry do not know what that means! glad you liked the video :-)
Thank you for watching! :-)
😂 😂 😂
A Ugly repair 😂😂😂
I know what you mean! You want to make it good, and it should look as good as new,
But sometimes it's just the way it is, as long as everything is working fine = NO ONE WILL LOOK AT IT AND OPEN THE BATTERY!
Thank You,, Yes we kind wants to make a good(looking) job. to :-)
@@MyPlayHouse
😂😂😂 YES, I know!
But sometimes it went the other way, and then it's becoming = damage control and trying to get it as good as possible!
And sometimes it's because of the effort to make it extra good!
But as long as it works, and no one get electrified (😂), everything is fine!
But you are a responsible mechanic (electrician), and it's recognizable 👍🏻