Tutorial: Rewrapping a battery

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tatasal
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The black shrink wraps I got from FT are useless. They refunded me. Maybe they are now stocking better quality wraps, as your black wraps look thicker and more sturdy-looking.

lhartman89
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Yea, the black seems to be alright to me. All 3 seem to be ok actually.

GoGoGadget Light
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Thanks for the tutorial how to.

reliant_turbo
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nice tutorial.

i bought some yellow wrap a few years ago on ebay and have tons of it left.

i had a buddy with a cell that the wrap got a little beat up and i wrapped it in some tape a little but then remembered that i had the wrap. so i pulled off the tape and it left a bunch of sticky tape stuff so i only wrapped the bottom bit of the battery overtop of the old wrap.

worked like a charm and still fits in his light.

i used that battery wrap on all kinds of stuff. like stuffing RC car electronics in too small of a car. Smile take boards out of the plastic cases that they come in and just heat shrink them and glue the ends shut with hot glue. now they fit in alot smaller place. Smile

Brian

ri chevy
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Anyone use the clear wrap from FT?

comfychair
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ri chevy wrote:
Anyone use the clear wrap from FT?

Yes.

GottaZoom
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comfychair wrote:

ri chevy wrote:
Anyone use the clear wrap from FT?

Yes.

+1 it’s a new favorite – there are some colors with transparency on ebay, but clear is good.

comfychair
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I haven't measured it to confirm this but the clear seems a little thicker than the colors. The others from FT are really thin, they're obviously not translucent like the red Sanyo cells, but markings on the cell are still readable through the colored wraps.

ri chevy
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Thanks guys. I plan on buying some of the clear to fix a few batteries. Beer

Siliconebattery
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Great post about Rewrapping a battery.

Thanks a lot.

Power Battery

Jerommel
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ri chevy wrote:
Thanks guys. I plan on buying some of the clear to fix a few batteries. Beer
I got some clear from FT.
Didn’t do a thing with a blowdryer, had to use a blowtorch…
dchomak
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I use a heat gun, looks like a blow dryer, but way hotter.

Jerommel
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You mean a paint-stripper-heat-gun?
Got one somewhere…
Will try it next time.

Helios-
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I’ve held it over a toaster. Worked well except the wrap didn’t take on enough of the delicious aroma. Easier to shrink it evenly then it is with a butane torch.


Counterfeit 18650s, 2,<a href=“http://

unknown00101
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Jerommel wrote:
ri chevy wrote:
Thanks guys. I plan on buying some of the clear to fix a few batteries. Beer
I got some clear from FT.
Didn’t do a thing with a blowdryer, had to use a blowtorch…

I used a Bic lighter Silly
tatasal
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I use a hair blow-dryer for the shrink ends and body, and afterwards use a lighter to remove or shrink the crease lines on both sides for a nice tight shrink. The flame from the lighter should touch in a buzz the crease to shrink it.

ri chevy
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unknown00101 wrote:
Jerommel wrote:
ri chevy wrote:
Thanks guys. I plan on buying some of the clear to fix a few batteries. Beer
I got some clear from FT. Didn’t do a thing with a blowdryer, had to use a blowtorch…
I used a Bic lighter Silly

I used an 1800 watt blow dryer and had no problems at all on hot/high. Only took about 10-15 seconds for the whole wrap to seal tight! Big Smile

Nightbird95
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Is there a similar tutorial on installing cell protection PCB’s. I got these cell protection PCBs and clear heatshrink from Fasttech and I intend to use it on my Samsung ICR18650-28As but I’ve no idea what to place in the positive end yet. :~

HKJ
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Nightbird95 wrote:
Is there a similar tutorial on installing cell protection PCB's. I got these cell protection PCBs and clear heatshrink from Fasttech and I intend to use it on my Samsung ICR18650-28As but I've no idea what to place in the positive end yet. :~

Not really, but maybe this can help you: http://www.lygte-info.dk/info/battery%20protection%20UK.html

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Nightbird95
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Thank you HKJ! Beer

higbvuyb
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Does anyone know where I can get buttontop plates (and I guess the plastic insulating rings) so I can rewrap flat tops to button tops?

comfychair
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higbvuyb wrote:
Does anyone know where I can get buttontop plates (and I guess the plastic insulating rings) so I can rewrap flat tops to button tops?

If you had the spot welder needed to attach the buttons you'd surely already know where to get them.

Werner
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higbvuyb wrote:
Does anyone know where I can get buttontop plates (and I guess the plastic insulating rings) so I can rewrap flat tops to button tops?

Just make a small solderblob on the top.

BShanahan14rulz
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Some AA batteries have “removable” button tops. “Removable” because they are technically welded on with two tacks. Be careful unwrapping old AAs, an unwrapped cell is easier to short out in the trash bin than one with its wrapper intact.

You can make your own insulator rings with scissors and a paper holepunch.

I rewrapped my first cell a few weeks ago, using a method just like tatasal described in #76 a few posts up: http://budgetlightforum.com/node/19095?page=2#comment-569759

hair dryer was enough to do most of it, used a lighter to tighten up the two creases down the side, and a few parts on the ends that didn’t shrink enough.

Richwouldnt
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I used precut lengths of wrap from Illumination Supply (illumn.com) and hit one difficulty at first try. The groove behind the head of the unprotected pack pull batteries I was rewrapping is deep enough so if the shrink wrap is heated too much it shrinks excessively and splits when it shrinks into the groove. Very little shrinking is required which means minimal heat and taking care.

Rich Wood
Reno, NV

wight
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Richwouldnt – I think I’ve also had shrink split at that groove at least once.

Still fine, still on a break. One day I’ll catch up with you folks! previous wight catchup Wink
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

SAKplumber
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Thanks for posting! Big Smile

kicken_bright
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Thanks for the post. I just did a 12 pack of eneloops with a candle. Very easy to do.
The candle was nice because it is fairly consistent heat and I could hold the battery with both hands. Super easy and they came out nice. Just hold it above the flame a good distance and move the battery quickly.

Nisei
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Just a tip:
I’m using translucent shrinkwrap and put the label with brand/type/capacity underneath the wrap.
That way the label can never get loose or become unreadable through use.

Binford
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very useful tips in here, I just bought a bunch of supplies over at fasttech and will follow the ideas on here.

thanks.

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