I want to rebuild several battery packs for my cordless tools.
Does anyone have recommendations for a good place to buy new cells
(online) and what brands to buy?
It would be best if you had first hand experience with this, I have
already done extensive search engine research.
On Tuesday, December 5, 2017 at 8:09:40 AM UTC-6, Brian wrote:
It might help if you give us the sites you've searched so no
one is suckered into doing searching and researching for you.
After all, isn't that the reason for your post in the first
place? You can't be bothered or don't have a clue what you
should be looking for.
That's ok, you'll convince others here to spoon-feed you.
On Tue, 5 Dec 2017 09:47:53 -0800 (PST), ItsJoanNotJoann
Joan, I suspect you are suffering with a reading comprehension
problem. I specifically asked for "first hand experience". I am
quite capable of using search engines and do not need anyone to search
on my behalf.
No sure why you are behaving so aggressively towards me, but, you can
take your attitude and shove it up your ass.
It is interesting to note that you contributed absolutely nothing to
the subject matter of the thread.
First, don't even think about soldering wires DIRECTLY onto cells.
Don't even think about getting cells that aren't rated for high current.
Make sure you're sitting down when you price high current cells.
Maybe even put a towel in your mouth so you won't bite your tongue
during the seizure.
Go to Lowes. (check stock online as they are getting scarce)
They sell a battery pack for the Kobalt tools for $10
Contains six 18650 name brand high current tool cells.
That's as cheap as it gets for HIGH CURRENT cells.
If you cut the tabs apart with a Dremel cutting wheel,
there's enough tab left so you can safely solder them together
IF YOU PUT A WET CLOTH ON THE CELL END AND DO IT VERY QUICKLY
SO YOU DON'T TRANSFER HEAT TO THE CELL.
A battery tab spot welder is a much better choice.
There's some protection circuitry in the battery pack.
You may or may not be able to rebuild them.
When you disconnect the cells, the chip might forget its
settings and refuse to restart, for your protection.
I don't have any Kobalt tools to test it, but I disconnected
the cells inside the Kobalt battery and reconnected. The battery test
lights no longer worked. Don't know if they would run a drill.
I took a quick look at rebuilding a dead Ryobi pack.
Didn't look like it was gonna restart...but I didn't try very hard.
I've had that problem with laptop battery packs. I only had one
restart because it had a PIC processor and I could figger out
how to reset it. All the rest just stayed dead.
Some people claimed that, if the battery was only weak, but still
functional, you could wire up a power supply to each cell connection
to keep it alive while you changed the cells.
It would be really disappointing to buy a bunch of expensive
cells and not be able to use them.
On Tuesday, December 5, 2017 at 9:13:54 AM UTC-5, Brian wrote:
I'd add that my comments about successfully rebuilding that old
Milwaukee was with an old battery pack that had no electronics in it,
it was just a dumb battery pack. I managed to solder to the tabs
on the new batteries with no problems.
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