Easy OKR-T VV mod

[mv2envy]

Thanks!!! Charger is on the way. It will have a charging port on the side so no need to ever open her up.

 

[xLowEndx]

very cool envy, keep it up

 

[mv2envy]

Charger came, it works quite well! Im building mod#2 with a flush atty connector. Not sure how els to change it to make it better. But I know one thing, mod#2 will run Kallies Kustoms 3100mah 18650 panasonic cells Can never have enough juice!!!

 

[meatsneakers]

Here's another box mod I made with this regulator - oak and poplar box with an ABS lid, super bright SMD LED through the juice feeder hole, 14500 IMR AW and built in charging. I decided to have a little fun since I get asked all the time on the street what the hell I have to my lips - so I call this one the fart box, to atomize fart juice...

 

[maddawg7]

Hello all, I have been reading all threads concerning the OKR-T6-W12C and have a couple of questions if you would not mind helping me out understand a few things.
1. What difference does it make if I use the on/off of pin1 or just use switch on Vin pin?
2. It appears to me from reading the threads some are using the W12EC calling it the standard W12C. Which this leads into my question. Is the only difference in the two is the pull down resistor in the W12EC and no resistor in the standard?
3. I order input and output capacitors and I am not sure if I should us them?
I sure I may have more questions later on but this will do for now. Will appreciate any and all help. Thanks

 

[bstedh]

Hello all, I have been reading all threads concerning the OKR-T6-W12C and have a couple of questions if you would not mind helping me out understand a few things.
1. What difference does it make if I use the on/off of pin1 or just use switch on Vin pin?
2. It appears to me from reading the threads some are using the W12EC calling it the standard W12C. Which this leads into my question. Is the only difference in the two is the pull down resistor in the W12EC and no resistor in the standard?
3. I order input and output capacitors and I am not sure if I should us them?
I sure I may have more questions later on but this will do for now. Will appreciate any and all help. Thanks

1. Pin one allows you to use a tach switch instead of a 3A switch.
2. As far as I can tell is whether it is positive or negative on the control pin. Or resistor or no resistor.
3. There is no need for the capacitors as they are built into the board already.

More ??? Just ask away. Just can't guarantee speed of reply =]

 

[maddawg7]

Thanks for the info. If I use pin 1, is that a normally closed or open switch?

 

[bstedh]

Thanks for the info. If I use pin 1, is that a normally closed or open switch?

Use a normally open but you need a pull down resistor on it. You will have to skim through either this thread or the one on my VV Weller to find the pertinent info on it. I have not used pin one yet in anything so I'm not positive on the value the resistor needs to be. Otherwise get a normally closed switch to bypass the need for the resistor. I believe the data sheet has the info on the pin.

 

[meatsneakers]

Its a 10k resistor between pin 1 and 3 to keep it off.

 

[maddawg7]

Thanks guys, I understand what you are telling me and plan on using pin 1. Should have all the parts in a couple of days and will let you know how it went.

 

[Wooden indian]

Made a few from this Digikey design. These little square flashlights make a great body.

First I removed the LED board, battery terminals, and plastic screw holes.

Then, I use painters tape top secure the box together and a sharpie to mark my holes.

Drill out button and battery connector holes, remove tape, and place them inside of the box.

Solder the chip to your board and make your connections. Used 18 gauge stranded.

Pop thumb wheel pot through existing hole in the back and LED to the top of the circuit board.

View from top.

Vaping Mocha Coffee at 5.2v

Enjoy!

 

[Wooden indian]

Thinking about holding off on anymore until my volt displays get here. Replacing the LED with one should still show through the box fairly well... I like the color changing LED in it, though. Tough call.

Edit:
Dang. Voltage displays were in the mailbox. They dont fit with the board in this housing...
Oh, well. Guess that solves my "should I"....

 

[WillyB]

Looks good. What is "Made a few from this Digikey design" ? DigiKey has some plan you followed?

Is that one of those bike flasher things?

How well do protected Li-ions fit?

It's nice to see you included some large pics of the inner workings/construction. Cool.

 

[Wooden indian]

LOL @ "digikey design". Meant to say bstedh design with the OKT from digikey. *smacks forehead*

Yeah, it's a flashing light for your belt while biking. ACE Hardware had them on sale (aa batts included) for $1.
Nice buy so I nabbed a box of 10 from 'em.
The cells fit really well. Snug, but the same as the AA battery boxes we use.

 

[mv2envy]

For those looking for the proper resistor to use instead of the 200ohm in the OP, here they are (after a very long search!)

220 OHM Metal Film 1/2W 1% 1/2w Watt 220 ohm 220R Metal Film Resistor 0.5 W (20) | eBay

This will make the top end of the voltage stop at 6V instead of 6.5V with the 200 OHM resistor.

 

[Rocketman]

1/2 watt resistors are pretty big.

 

[mv2envy]

He carries all sizes

1/4w Watt 220 ohm 220R Metal Film Resistor 0.25W (50) | eBay

1/8w Watt 0.125W 220 ohm 220R Metal Film R Resistor(50) | eBay

 

[Rocketman]

get the cheaper ones.
cheaper is better, regardless of size and wattage

 

[mv2envy]

Specs call for 1/10W so 1/8W should be good. And they all seem to be the same price. I looked but couldnt find 1% 220 OHM resistors in the states. Its a non standard resistor.

 

[Rocketman]

If you got the 50 pack of 1/8 watt resistors, I bet several would be within 1% of 220 ohms

Digikey has 5 % resistors for about 9 cents each, but shipping will be $2.39.
Buy more than one.

5% resistor would be between 210 and 230

What would be the change in voltage range if the resistor is 2 or 3 percent high or low?


look at these

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=CF18JT220RCT-ND