USB charger built in for nicostick

[CanyonRunner]

Guys, are you doing this just for the challenge, or for a real purpose?

Just be nice to vape at full voltage, and walk away with a charged battery!

I would like to put a plugin in my box mod, to use as a passthrough, that not only works from USB, but also from an old AC power source (5v DC (I have a whole drawer full of old converters)), and also a 12v Cig lighter converter that puts out 5 volts (for those long trips). So if I'm going to put a plug in the box, and the plug happens to have a charger attached for 5 bucks...

And yea, it's just fun!!

 

[CanyonRunner]

Stevo

This might be of some help??

Charging Lithium

P.S. If nothing else, the part about the "Magic Smoke" is pretty funny.

 

[stevo_tdo]

One step ahead of you canyonrunner. Read that yesterday, it's what made me decide on the 1811 versus the 1555. Yeah i did like the magic smoke part.

 

[stevo_tdo]

Just be nice to vape at full voltage, and walk away with a charged battery!

I would like to put a plugin in my box mod, to use as a passthrough, that not only works from USB, but also from an old AC power source (5v DC (I have a whole drawer full of old converters)), and also a 12v Cig lighter converter that puts out 5 volts (for those long trips). So if I'm going to put a plug in the box, and the plug happens to have a charger attached for 5 bucks...

And yea, it's just fun!!

This is the one that would suit you

SparkFun Electronics - LiPoly Charger - Single Cell 3.7-7V Input

That is if you don't want to build one yourself. Also they have a 5vdc jack female to male usb mini plug too. If you just got only the max1555 chip you could use just the 5vdc input and use the converter plug when you wanted to use it via usb. Just food for thought.

I'm finishing up my blueprints so I can place my orders tomorrow

 

[stevo_tdo]

Just ordered everything this morning, will hopefully have everything before the end of the week. I think the most expensive things were the batteries. It's going to turn out nice.....

Well I'm still waiting on my parts to come in. Got everything else figured out though. Shouldn't end up being to hard to do it.

 

[stevo_tdo]

Just waiting on my chips, were are my chips. Guess i'll get everything else together damn this sh*t is tiny, gonna need a magnifying glass to solder this stuff.

 

[mnealtx]

I hear ya -still waiting on my switches.

I've got everything else together, slotted the m401 battery connector to provide air to the atty, glued it in place... tried it out with just the on/off switch and have popped 2 of my 5 attys....WTF???

There's not THAT much difference in voltage between the 14500 and the 510 batts...worked out to .05amp more... I figured the first one might have been weak, but *two* of them???

 

[stevo_tdo]

Not sure, i finally got my 14500 for my nicostick. Worked like a charm. Just waiting on my max ic charge chips now.

 

[mnealtx]

Post pics, once you figure out how to shoehorn it in there!!

 

[stevo_tdo]

Well, hopefully i'll have the usb and charge chip setup done by tomorrow. I can post that, but i am waiting on my cases to come in to put it all in and my atty connectors

 

[stevo_tdo]

Well, I only got as far as soldering the chips on the boards i bought. Decided to go out with the wife again for dinnner and that's as far as I got. I bought the capacitors but i still need to get my charge indication led's. Picked up some 1/4" jacks to use as atty connectors. Just waiting on my cases.

Boy these dang things were tiny. Glad i got the jedec soic to dip boards. I put a standard aa in the picks as a reference of size.

 

[mnealtx]

I guess .mil doesn't like your photo hosting site... dangit. All I get are Xes...

 

[stevo_tdo]

Still not seeing them?

http://www.imagebucket.net/bucket/is.php?i=5083&img=100_0474.JPG


http://www.imagebucket.net/bucket/is.php?i=5084&img=100_0485.JPG

 

[mnealtx]

Wow...those ARE tiny!!!

I'm getting about 2.5 days out of a parallel 14500 setup, so I'm not as worried about it - but being able to just plug it into a micro-usb cable overnight when I'm traveling DOES have a certain attraction... let us know how hard it was to shoehorn into the box!

 

[stevo_tdo]

I got my boards done and the charger works but it's ugly as hell. I'm not even going to post pics until i get in the connectors i needed. I ended up severely rednecking up this thing. I mean ugly ugly, you look at it and think, damn why isn't this thing on fire yet. But the initial test works and now i just need to resolder the board with good looking connectors.

 

[mnealtx]

Screw that... post the pics now, so you can impress us even more with the before/after!!!

 

[stevo_tdo]

Yeah, I'll go ahead and do that. Just gotta wait on those connectors now. I won't be able to order the right connectors until monday. Fixed incomes suck.

 

[mnealtx]

My switches finally came in, so I guess I need to get off MY .... and throw some pics up, myself... I can DEFINITELY say my epoxy-fu is weak, though...

 

[stevo_tdo]

 

[mnealtx]

<grumbles> frigging military blocking photobucket...