Li-ion Polymer? or just Li-Po

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Orph

Full Member
Apr 3, 2011
61
14
Australia
I'm pretty new to vaping, but I'm thinking of a few mod ideas already.
One thing that is confusing me is that I'm seeing some batteries advertised as Li-Ion Polymer.
This seems like a bit of a contradiction in terms, and I'm pretty sure they're just Li-Po batteries, incorrectly labelled to create confusion and perhaps sell a few more...
http://ionnoidigital.com/ionnoi/images/28-1395.jpg

Are Lithium Polymer batteries still ok to use in a mod? If so, what are the pro's and cons of using them?

I'm liking the idea of a neat, flatter box mod using either cell phone batteries or similar...
 

VWFringe

Senior Member
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Jan 7, 2011
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South Orange County, CA
4.5 watt hours..YOW!

do you know the measurements?

yes you can use li-po, and it's a safer battery chemistry and either won't explode/burn or is less likely to

900 mAh li-po fits into 2 x AAA box with room for a charging pc board

you can find charging pc boards on the net, if you wanted to build it in

flat mod...cool idea

and can't answer why they labelled it like that, unless they think customs or customers won't know what li-po is

i posted a pic and link to a charging board/900mah li-po today in "battery mods"
 
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Orph

Full Member
Apr 3, 2011
61
14
Australia
Thanks VWFringe!
That opens up a few more possibilities :)

It's supposedly a replacement battery for a non working ipod 2g that I've had lying around for years.
Specification
Dimensions: 85 x 55 x 5mm(L x W x H)
Weight: 46g
Type: Li-polymer
Voltage: 3.7V
Capacity: 1600/2200mAh

Just toying with the idea of converting an old 2nd gen ipod at the moment
 

VWFringe

Senior Member
ECF Veteran
Jan 7, 2011
243
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South Orange County, CA
don't use the wrong charger - pcb's can be had for $14, or li-po chargers for about the same
please check how old it is, and if any issues with it's age - i think the ones with problems were first generation (videos of new ones don't explode)

from wikipedia li-po page:

However, lithium polymer-specific chargers are required to avoid fire and explosion. Explosions can also occur if the battery is short-circuited, as tremendous current passes through the cell in an instant. Radio-control enthusiasts take special precautions to ensure their battery leads are properly connected and insulated. Furthermore fires can occur if the cell or pack is punctured. Radio-controlled car batteries are often protected by durable plastic cases to prevent puncture. Specially designed electronic motor speed controls are used to prevent excessive discharge and subsequent battery damage. This is achieved using a low voltage cutoff (LVC) setting that is adjusted to maintain cell voltage greater than (typically) 3 V per cell.

Also, I believe there is already a protection circuit built into the cell, and that this has an application current limit, but I don't know that for sure, or whether you'd bump up against that - if so you could always jumper past the board and add another one with a higher rating, they cost less than two dollars each, and they have them for two cells hooked up together, if that's how you were going.

obviously, it's not safe for me to suggest modifying a battery, i just think it's possible in the whole cosmic scheme of things
 
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