Anyone know of a good company that
replaces cells in power tool batteries.
I have 2 18 volt dewalt XR2 batteries
that need replacing or re-celling. They
have lasted many years and 1 actually
still works pretty good, but I think
We run a lot of DeWalt battery equipment - over 60 units. We
tried several rebuild outfits. We have quit and now buy new
replacement DeWalt batteries. The rebuilds just don't seem to
last and the cost is not enough better than buying new. These are
Keep the whole world singing . . .
I looked into this recently for an old Milwaukee battery pack I
needed. It cost almost as much to have it rebuilt as you can buy a
new pack for on Ebay. I decided to rebuild it myself and bought the
batteries on Ebay for less than 1/2 of what rebuilding would have
cost. It was a bit tricky because there isn't much spare room and
everything has to fit back in precisely. I just made it by leaving
out one shim piece.
On 10/7/2010 6:19 PM,
Thanks for all the responses. I too
found that you could get brand new 2010
date code batteries on ebay for about
the same cost of having them rebuilt. I
have rebuilt battery packs in the past,
but you really should have a small spot
welder to connect the cells together.
Soldering does work but can damage the
cells. When my 2 new batteries arrive,
I will try to rebuild one of my old ones
just to compare the results.
I don't think soldering will damage the batteries as long as you get
the ones that have the tabs already spot welded to the batteries.
Then you just solder onto the tabs which are an inch plus long and
should not transfer that much heat to the battery. I did it by
myself, but it would be much easier with an assistant to keep
everything aligned. Also, I didn't realize the batteries come with a
least some charge in them. You have to be careful while working not
to short them out.
On 10/9/2010 10:09 AM,
Ya, I think that's true especially if
you use a large hot iron. With plenty
of solder iron mass, you should be able
to solder on a tab pretty fast without
building up too much heat in the cell.
If you sued a small iron, like the ones
for use on a PC board, it will take a
lot longer to heat up the metal on the
end of the cell and it will thus
transfer heat to the cell itself.
Yes, but, you must, not only the tab
hot, but the spot on the top of the cell
being soldered to. Most good electronic
irons have a pretty hefty element,
though a smaller tip, and temperature
control. Good preparation of the cell
top is also good. Some electronic-type
solder paste would also help.
I think you missed my main point, which was to get batteries that
already have the tabs spot welded on them. Then there is no need to
be concerned with soldering tabs to the batteries. You just solder
the tab to the next battery tab, or to a wire, etc. Far less heat
gets to the battery.
On 10/9/2010 7:09 PM,
Yes, I guess I missed that. But, most
of the cells that I have seen and used,
only have 1 tab welded to the cell. I
admittedly have only seen a few. That
would be good if you can get both + and
_ - tabs welded on.
PRIMECELL.COM does a excellent job, and uses newer high capacity
they even rebuild battery packs that are glued together.
you can check their website for pricing, run times doubled from my
tools brand new time, now thats impresive:)
Some added info. I've looked on Google
for new ones and for repair places. I'm
really just asking if anyone has any
good or bad reports of companies doing
the cell replacement work. Also, the
batteries I have are the older XR2; now
they are selling XRP. I don't know if
the change from 2 or P is advertising
hype or that they are really improved.
Is it worth buying the XRPs or will
the rebuild essentially upgrade them to
XRPs. BTW, I've found places that will
re-cell the batteries for $60. For
that, I will buy new.
Perhaps it depends on where you live. All Canadian cities approaching
1 million population each have at least one specialised battery repair/
replacement store. Construction and tool-using tradesmen need this
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