Rewrapping 18650s hints and tips?

[zoiDman]

There are some things that are so Insurmountably Inexpensive compared to the Amount of use I get out of them. And there are some things that Add about Zero Effort into the process of doing a DIY Project.

A Pair of Safety Glasses with a Neck Leash would be a Good Example of this. Including the Insulator Ring to a Re-Wrapped Battery would be Another.

I guess I could make the Argument that if I Lost the Insulator Ring on a Battery, and it was the Only Battery I had, and I needed the Battery Right Now or my Life would be Wacked, then yeah... guess I might Wrap a Battery without it.

But I would still get a Replacement Insulator(s) because they cost about Nothing. And I would Re-Wrap the Battery when the Insulator(s) arrived. Because it takes about 5 Minutes to do so.

 

[Eskie]

But I would still get a Replacement Insulator(s) because they cost about Nothing. And I would Re-Wrap the Battery when the Insulator(s) arrived. Because it takes about 5 Minutes to do so.

We all have different comfort levels. My compromise in that situation is throw a wrap on the battery rather than leave it bare, then rewrap when I had an insulator. I really wouldn't want to store a naked battery waiting on a little disk to arrive. I wouldn't use the battery, simply leave it for a rewrap later. A silicone sleeve or plastic box might well be enough, but for the few minutes to shrink wrap it I'll go with that.

I'm not a battery manufacturer, and can't claim years of experience building and testing batteries. I'm just someone who vapes which means I'm stuck using high amp batteries. The way I look at it is if all the manufacturers go to the trouble of adding those little disks to their batteries they have to serve a purpose. I get it's probably just because in the wrapping and packaging of these things tolerances can't guarantee every shrink wrap will completely cover the negative pole surrounding the positive to avoid an inadvertent short when placing them into a device or battery pack, depending on your use. Maybe if I did a perfect wrap every time it would be as good, if not better, than the insulator.

Me? For the $0.05 cost for the disk if I need to replace it, I'll throw one on top with a rewrap.

 

[Smoke_too_much]

A hair dryer can be made to run much hotter by closing down some of its airflow. Just be careful not to let it get too hot or it may melt as most of them are plastic or have plastic parts.

 

[beckdg]

We all have different comfort levels. My compromise in that situation is throw a wrap on the battery rather than leave it bare, then rewrap when I had an insulator. I really wouldn't want to store a naked battery waiting on a little disk to arrive. I wouldn't use the battery, simply leave it for a rewrap later. A silicone sleeve or plastic box might well be enough, but for the few minutes to shrink wrap it I'll go with that.

I'm not a battery manufacturer, and can't claim years of experience building and testing batteries. I'm just someone who vapes which means I'm stuck using high amp batteries. The way I look at it is if all the manufacturers go to the trouble of adding those little disks to their batteries they have to serve a purpose. I get it's probably just because in the wrapping and packaging of these things tolerances can't guarantee every shrink wrap will completely cover the negative pole surrounding the positive to avoid an inadvertent short when placing them into a device or battery pack, depending on your use. Maybe if I did a perfect wrap every time it would be as good, if not better, than the insulator.

Me? For the $0.05 cost for the disk if I need to replace it, I'll throw one on top with a rewrap.

LOL

You basically repeat what I'm saying.

Only with uncertainty and added speculation.

And people "like" it.

Smh...

Tapatyped

 

[Joergl100]

The insulator ring is as important as ESSENTIAL!!!

Hard short can occure without by simply slide a battery in a battery holder...definitely. Just look at my picture to see...what that "donut", as you name that...covers...and surely avoids!

BTW: That from Fasttech are pretty thick ones...really durable and not that weak washerthings as usual.

 

[r055co]

And the scary part was getting the old wrap cut off at the Pos end. You have a blade of some kind right next to the narrow gap between the pos and neg. Got to have steady hands and nerves of steel.

I use a ceramic blade, got it for something like $5 or so, cheap for peace of mind and safety

That donut is unnecessary. I have a couple of batts that have been rewrapped for over a year without them.

All is just dandy with those cells.

Until you get a nick.
The so called "donut" is very necessary and it's foolish not to have them on. Basically it's like going out and having unprotected sex.

 

[r055co]

As for Blow Dryers, I just got a heat gun, pretty inexpensive and works much better than a Blow Dryer.

 

[r77r7r]

LOL

You basically repeat what I'm saying.

Only with uncertainty and added speculation.

And people "like" it.

Smh...

Tapatyped

You are a good guy and your input is valuable here. The way you deliver it, is.... Different But still good

 

[RainSong]

Thank you to everyone that has replied so far, you've all given great advice from several viewpoints and I appreciate that. Ultimately we all have to do what we are comfortable with and that level clearly varies between people, and that's ok! That's one of the fantastic things about vaping, you can do what works for you. I have a few weeks to consider my course of action while I wait for that slow boat from China.

 

[Joergl100]

Three weeks to Germany...but reliable!

 

[Joergl100]

I use a ceramic blade, got it for something like $5 or so, cheap for peace of mind and safety

The hardest is NOT ALWAYS the best...in this case it is surely not.

 

[r77r7r]

An insulator ring could be homemade from credit card plastic?

 

[KenD]

An insulator ring could be homemade from credit card plastic?

Credit card plastic is a bit too thick, IMO.

Sent from my K6000 Pro using Tapatalk

 

[zoiDman]

An insulator ring could be homemade from credit card plastic?

A CC might be a Tad think to use.

But the Idea is Right on the Money.

 

[beckdg]

You are a good guy and your input is valuable here. The way you deliver it, is.... Different But still good

I apologize for that.

It's obviously something I struggle with.

A personality flaw that's not a problem face to face.

Not that what I say is different.

Just you can see me and know it's not an attack.

Tapatyped

 

[beckdg]

The insulator ring is as important as ESSENTIAL!!!

Hard short can occure without by simply slide a battery in a battery holder...definitely. Just look at my picture to see...what that "donut", as you name that...covers...and surely avoids!

BTW: That from Fasttech are pretty thick ones...really durable and not that weak washerthings as usual.

1 *I* did not name it anything.

2 Good luck getting a donut, grommet or insulator ring that stops that from happening.

I use a ceramic blade, got it for something like $5 or so, cheap for peace of mind and safety


Until you get a nick.
The so called "donut" is very necessary and it's foolish not to have them on. Basically it's like going out and having unprotected sex.

I would agree *IF* they actually covered the negative terminal.

Obviously the positive terminal is already exposed on that end.

Tapatyped

 

[r77r7r]

Credit card plastic is a bit too thick, IMO.

Sent from my K6000 Pro using Tapatalk

Well, card in general I meant. I have some insurance cards that are thinner.

Edit: Althoooooo, Some folks on here may be needing their CC's cut up

 

[KenD]

Well, card in general I meant. I have some insurance cards that are thinner.

That should work, I think. As long as the hole is correctly dimensioned.

Sent from my K6000 Pro using Tapatalk

 

[Eskie]

It's got to be cut pretty exact to be of more benefit than nuisance. It's not like say a mod guard that even if it's a little lopsided won't matter under the screwed down tank. But cutting a perfect circle and punching out a perfect circle in it to allow for the positive pole is a challenge, unless you've got some crazy good xacto skills. I'll just go with the sheet of 20. I'm aware of my own limited skill set.

 

[kross8]

i use the hot blow dryer and a comb to guide it as it rolls across the counter from the wind of the blow dryer.