USB Nicostick

[opuscroakus]

Here's what I want to do. Could someone please tell me if this is possible, and if so, what recharging setup I would need.

Okay, I would like to have a Nicostick running 2 14500's in parallel, able to charge by USB and also use as a passthrough, running at 5v with a TI 04050c booster. I would like to put it in a 3xAA box but I'm not sure it would all fit so a 4xAA box is probably where I am heading.

I've already done a parallel box with the booster, I just mainly need help with the USB recharging/passthrough portion.

 

[codfish124]

take an old usb charger apart. there is a board in there that you can wire up and add a plug and have it charge.

or if you have a dead atty you can add the charging board in sires with the atty let me see if i can draw up what i did when i did this. but i did this with my old batteries from my old e cigs

 

[codfish124]

lets see if you can understand this

 

[opuscroakus]

Hmmm, I understand some of this. Wiring it this way, how is it going to charge the batteries? Also, I plan on running this 5voff the batteries as well as USB. I know where the 04050c chip should be wired in without the USB in there, but not with the usb.

Sorry for the questions but this is way different than SQL management and database programming.

lets see if you can understand this

 

[codfish124]

the green thing is the charging board if you want to run the TI booster board you would add that circuit on the out side of the switch.


what i did is add the charging board on the out side of the switch then powered the charging board off usb power via broken atty solded the usb wires to that. you could add a charging plug like a dc N jack in the box and have the male part on the usb cord.



pink is booster board

purple is your charging adapter

gold atty connector

bule batteries

green is the charging board from a old usb charger ( that's what i used )

gray is the switch

black is a ground junction ( that's how i do it.)

here is a variation if you still wanted to use the atty connector as the charging port.

 

[opuscroakus]

Much more understandable. Now onto the charging of the batteries. If this is powered from a powered USB hub, will there be enough mA to charge both batteries? Also, when charging in this configuration, can I safely assume that one will charge, then the other and the batteries built in protection will keep one from overcharging?

Guess I need to order a charging board since I don't have an old USB charger. Any suggestions?

the green thing is the charging board if you want to run the TI booster board you would add that circuit on the out side of the switch.


what i did is add the charging board on the out side of the switch then powered the charging board off usb power via broken atty solded the usb wires to that. you could add a charging plug like a dc N jack in the box and have the male part on the usb cord.



pink is booster board

purple is your charging adapter

gold atty connector

bule batteries

green is the charging board from a old usb charger ( that's what i used )

gray is the switch

black is a ground junction ( that's how i do it.)

here is a variation if you still wanted to use the atty connector as the charging port.

 

[codfish124]

i don't know numbers i can just design stuff. i don't know how a hub works so i really don't know if the mA will be there.

i would think that both batteries would charge at the same rate and yes if with protected batteries if one charges faster then it would cut off.

just find the cheapest usb charger i used one like this USB Charger for DSE901 [DSE901] - $4.00 : Healthcabin Electronic Cigarettes - Wholesale and Retail

it works great i let my batteries charge over night now my batteries are smaller than yours will be. i also took off the charging light. so i use a lenmar charger and keep it plugged in to the usb of my computer when the light is blue then both are charged.

 

[Guitarslinger]

Great info-I've been looking for the same-What would be the best power source to use with this if you wanted to plug into a wall outlet (120 v). I have a pile of different wall wart voltage/amp converters. For example-would a 5v 800 mA work??? or do you need to use the same voltage as what you are running in the mod? (In this case 3.7 v due to it running parallel-I'd probably just leave it at that rather than boosting it) Appreciate the info.

 

[M4jin]

sweet idea

 

[codfish124]

i have seen all 3.7 charger charge at 4.3. the charger i use is from a usb charger that the cig broke. if you wanted to run wall power look at a battery charger that is for the batterys you are running.

 

[Pendarus]

the green thing is the charging board if you want to run the TI booster board you would add that circuit on the out side of the switch.


what i did is add the charging board on the out side of the switch then powered the charging board off usb power via broken atty solded the usb wires to that. you could add a charging plug like a dc N jack in the box and have the male part on the usb cord.



pink is booster board

purple is your charging adapter

gold atty connector

bule batteries

green is the charging board from a old usb charger ( that's what i used )

gray is the switch

black is a ground junction ( that's how i do it.)

here is a variation if you still wanted to use the atty connector as the charging port.

I wanted to do the same thing. Very simple! I was over thinking it!

This will work as a passthru as well?

 

[cybervex]

Much more understandable. Now onto the charging of the batteries. If this is powered from a powered USB hub, will there be enough mA to charge both batteries? Also, when charging in this configuration, can I safely assume that one will charge, then the other and the batteries built in protection will keep one from overcharging?

Guess I need to order a charging board since I don't have an old USB charger. Any suggestions?

Just make a PCB with a max1811 charge chip. It is not very hard.

Jay