Indeed. Though I was thinking in terms of extracting a board from an e-cig charger.
ps: i don't know about 401s or 801s.
USB charger built in for nicostick
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Indeed. Though I was thinking in terms of extracting a board from an e-cig charger.
ps: i don't know about 401s or 801s.
I'm pondering this type of thing, myself - I'm going to be building at least one 510 boxmod, but I'm wondering where the 'sweet spot' is for vapor production/temp and cartridge size.
Maybe a poll...
Maybe a poll...
Well. I'm reading good things so far about the 801 atomizer and cartridge. Holds 1.1ml juice versus I believe around .4 in the m401 and .6 in the 510. Seems there was a poll about who was using what in there jantystick? When they stuck with 3.7 volts it was a workhorse with good vapor and everything but when they went to 6volts They just couldn't hold up. Burnt out atty's melted things and such. Also their were certain types of the 801 atty that worked better over the others.
Here's a link to a little bit about the 6 volt problem and some ideas of good vendors for the 801 atomizers
http://www.e-cigarette-forum.com/forum/gg/26353-6-volts-new-801-attys.html
Also it seems that the m201 might be worth looking into also. Seems pretty good with around a 1ml capacity.
Here's a link to a little bit about the 6 volt problem and some ideas of good vendors for the 801 atomizers
http://www.e-cigarette-forum.com/forum/gg/26353-6-volts-new-801-attys.html
Also it seems that the m201 might be worth looking into also. Seems pretty good with around a 1ml capacity.
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Anyways back on topic. Been thinking . The main limitation of the charger i was looking at and the standard usb chargers for ecigs is the seemingly uniform 100 ma limit. I remember that the evo charger i think was designed with a fast charge when connected with a stubby straight to a usb port? I would assume that feature exist in the charger and not the battery? If so maybe that would be the charger to use for higher ma charge. Of course please correct me if i am wrong.
Crap. Now I can't remember where or for what ecig I had read about this.
Crap. Now I can't remember where or for what ecig I had read about this.
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100mA is all that an unpowered USB might provide. In practice though only a computer USB is likely to be used, so the full 300mA capability (max charge current for lithiums) is more practical. Would require a small change once the charge chip on the board was identified.
Well, the g/f doesn't even know I'm vaping yet... waiting to see the look on her face when I go home on vacation and DON'T immediately run for outside to have a smoke... 
Not easy.
One way: with a 555 in monostable mode (google 555 timer). But will cut off only if have released button (it's edge triggered). Could AND the button and timer output, or similar logic to get desired behaviour.
Or go the whole hog with a PIC (programmable IC). See, for example:
PICAXE
Here's something I found in the picaxe forum
To be compliant with USB Specifications (Rev. 1.1),
a high-power function must not draw more
than 500 mA from the bus during normal
operation.
There are additional current restraints on a
high-power USB function that apply during
system start-up or when a device is initially
connected to an active bus. Until a device is
properly configured by the USB system, the
device may not draw more than 100 mA from the bus.
Might be the reason for all usb chargers to limit to 100mA
To be compliant with USB Specifications (Rev. 1.1),
a high-power function must not draw more
than 500 mA from the bus during normal
operation.
There are additional current restraints on a
high-power USB function that apply during
system start-up or when a device is initially
connected to an active bus. Until a device is
properly configured by the USB system, the
device may not draw more than 100 mA from the bus.
Might be the reason for all usb chargers to limit to 100mA
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In practice, computer USB ports will generally supply 1A or more without any complex signalling. The 100mA limit is there for unpowered USB ports, such as on mobiles etc.
Direct passthroughs use 1A and greater. Chargers are faster with 300mA (will not need more).
Think I'm going to go with this.
http://datasheets.maxim-ic.com/en/ds/MAX1811.pdf
Can set to 500 ma charging or 100 ma
might even just stick with a 18650 protected to keep the mod better sized.
Just ordered 2 samples of the max1811 and max1555.
FREE!!! Would of cost me like 30 dollars
10 dollars shipping and 5 dollars per chip
http://datasheets.maxim-ic.com/en/ds/MAX1811.pdf
Can set to 500 ma charging or 100 ma
might even just stick with a 18650 protected to keep the mod better sized.
Just ordered 2 samples of the max1811 and max1555.
FREE!!! Would of cost me like 30 dollars
10 dollars shipping and 5 dollars per chip
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Guys, are you doing this just for the challenge, or for a real purpose?
Don't get me wrong, i am also having fun reading what you post, but why convert a PV into a cellphone?
As if cellphones batteries were'nt already annoying enough to re-charge.
Why not just pull the battery out and place it in a charger and use a second one while the first charges?
Maybe i am just 2 practical?
Don't get me wrong, i am also having fun reading what you post, but why convert a PV into a cellphone?
As if cellphones batteries were'nt already annoying enough to re-charge.
Why not just pull the battery out and place it in a charger and use a second one while the first charges?
Maybe i am just 2 practical?
Completely purposeful. It's how I think, bouncing from one idea to a next till I reach a good idea (although sometimes it takes awhile). I've scrapped the cell phone battery part just because i believe a protected 18650 - 2400 ma would be a better size to work with ( Thinner but longer case). Switched charge chips to one that will allow fast charging strictly from usb and only needs 2x 4.7uF capacitors and a 10k ohm resistor. Will all fit in a box simillar to a 2aa box.
So then you get:
Rechargeable box from mini usb
Also function as a passthrough
Not much bigger than a 2 aa box.
Figure out what a standard 18650 protected nicostick would cost and then add 5 bucks, thats what it will cost me per box to add charge and passsthrough capacbility.
So long story short, I hope it works...lol
So then you get:
Rechargeable box from mini usb
Also function as a passthrough
Not much bigger than a 2 aa box.
Figure out what a standard 18650 protected nicostick would cost and then add 5 bucks, thats what it will cost me per box to add charge and passsthrough capacbility.
So long story short, I hope it works...lol
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