I have a growing collection of old, out-dated cell phones. I noticed the batteries are all 3.7v, 1000mAh, li-ion. They have the flat form, and make me wonder: Why can't these be use for modding? I'm not thrilled with the screwdriver form or wooden box form that I keep seeing. It seems that they would open up a new range of forms for mods. Am I missing something?
cell phone batteries
- Thread starter erinspeed
- Start date
- th_trl_thread_readers 0
-
- Tags
- revolution
- Status
Yes. Unfortunately, those are most likely not protected lithium batteries. If so, you would have to design and include your own protection circuitry into your mod. You might be able to cannibalize the protection circuitry from off of the cellphone though it might be hard to identify.
Great thinking though - modding is so much fun!
Great thinking though - modding is so much fun!
Keep your eye out for this little button device that could be used to make almost any unregulated big battery mod have Variable Power (auto calculates to Ohms's Law):
http://www.e-cigarette-forum.com/forum/nhaler/237122-nhaler-announces-kick-evolv.html
Here's a vape show discussing and showing off the prototype device. The part about the Kick starts around 25:40 into the show.
http://www.livestream.com/vapourtrai...a-ed6a05e8dc85
Still in alpha and beta stages of production but it's probably going to make it to market.
While this one is going to be a button designed to fit in an 18650 tube, I see no reason it couldn't be 'wired up' to other battery shapes that meet the right voltage and current rating standards.
Also, there are a couple of mods already that use Li-Poly cell phone type batteries.
Darwin
Boge Revolution
http://www.e-cigarette-forum.com/forum/nhaler/237122-nhaler-announces-kick-evolv.html
Here's a vape show discussing and showing off the prototype device. The part about the Kick starts around 25:40 into the show.
http://www.livestream.com/vapourtrai...a-ed6a05e8dc85
Still in alpha and beta stages of production but it's probably going to make it to market.
While this one is going to be a button designed to fit in an 18650 tube, I see no reason it couldn't be 'wired up' to other battery shapes that meet the right voltage and current rating standards.
Also, there are a couple of mods already that use Li-Poly cell phone type batteries.
Darwin
Boge Revolution
Last edited:
Some comments on cell phones batts, they are Li-Ion cells, more specifically, Lithium Polymer or LiPo cells. However, they are designed for a somewhat lower drain that what you would see with an atomizer. You'd want to be sure you're not overloading them. Since the data would probably be next to impossible to find, you're going to be in the dark on that. Also, all Li-Ion batterys have shelf life. That means they lose charge capacity just sitting on the shelf without being used. So, if you're pulling them from old cell phones they're probably too old may have lost most of their capacity. 3 to 5 years is typical shelf life for a LiPo. However, you can greatly increase that by storing them at half charge in a refrigerator (not a freezer, that will damage them).
It's all about the C rating. Though I've read up on what it actually means, still confuses the ish outta me how its calculated. It needs to be able to handle at least 2 amp discharge rate. Most likely it won't be able to handle it, however I did see that Matt from epipemods put an extended Evo 3D battery into a pipe, that had a suitable 'C' rating to vape.
FYI: C Ratings - What the heck is this anyway?
Basically, for ecig purposes, the C rating for a battery is how many amps it can deliver. A 2C battery can deliver 2 x mAhs Amps; a 10C battery - 10 x mAhs Amps
(Disclaimer: Any information typed by me may be totally erroneous; but if so, it was not meant to mislead and is something that I actually believed at the time that I typed it.)
Basically, for ecig purposes, the C rating for a battery is how many amps it can deliver. A 2C battery can deliver 2 x mAhs Amps; a 10C battery - 10 x mAhs Amps
(Disclaimer: Any information typed by me may be totally erroneous; but if so, it was not meant to mislead and is something that I actually believed at the time that I typed it.)
Here is a thread with some info about using cell phone batteries.
http://www.e-cigarette-forum.com/forum/battery-mods/232038-cell-phone-battery.html
http://www.e-cigarette-forum.com/forum/battery-mods/232038-cell-phone-battery.html
Ya wanna do a quick check on your cell phone batts for vaping purposes; try this http://www.e-cigarette-forum.com/forum/battery-mods/207534-bored-work-mod-ghetto.html 
Drain capability is up to the manufacturer and it depends on the application. It's normally stated in terms of a cell's charge capacity as you explained. It's a trade-off for size. By constructing with thicker foils and differences in the electrolytes, higher drain can be obtained, but it makes the cell larger. I've seen Li-Ions anywhere from .5C to 60C max drain. Cell phones batteries are low drain, my guess would be .5C, but I don't know for sure. That's why the batteries have fairly high charge capacity in such a small size.
People get excited when they see a battery with 1200mAh the size of a book of matches, but you don't get something for nothing.
i have a 3.7v 800mah cell battery and it says on it as well 3.0 wh so this one im going to give a try and already just a quick test seemed to work. time to get building.
It would be possible to use a capacitor to assist, but not practical.
You need a large current source to charge a capacitor quickly. If you have a source like that, you might as well just use the source to power the atomizer and forget the capacitor.
You can use a smaller current source to charge a capacitor, but it takes an amount an time. You probably would not be able to charge a capacitor of high enough value in the time you have between hits.
The energy density of a capacitor is actually pretty low. You'd need a physically large capacitor to run an atomizer even for only a few seconds. Forget the capacitor and just use a bigger battery than can handle the draw. It would be a lot smaller.
You need a large current source to charge a capacitor quickly. If you have a source like that, you might as well just use the source to power the atomizer and forget the capacitor.
You can use a smaller current source to charge a capacitor, but it takes an amount an time. You probably would not be able to charge a capacitor of high enough value in the time you have between hits.
The energy density of a capacitor is actually pretty low. You'd need a physically large capacitor to run an atomizer even for only a few seconds. Forget the capacitor and just use a bigger battery than can handle the draw. It would be a lot smaller.
OK I took that battery, the phone, some push in cable wire and gutted the phone and built a mod with the cell battery. so far I am very impressed. I have 3 of these phones so charging aint a problem and the vapor is great. also power is excelent as well. over 8 hours on this battery and still going. Ill try to get some pics up tonight.
Only if you want to build a tazzer. lol. was thinkiing of the same till my camera zaped me.
i guess i did a good job on it because some ...... stole it lol. hope they realize they cant make a call. lmfao
Do a little gutting on the cell phone and leave battery and charging circuit intact...!
well i can say this It still works. even after a week. I have been charging them with a ghetto charger. hard wired in. 2 hour charge gets me about 12 hours vaping. but the fear of battery failure is getting me to look at circut protection. so looks like back to the drawing board. lol by the way I found the cell e cig after some idiot at work took it.
- Status
