The Slim Pak - My Latest Mod

[Laredo7mm]

Here are a couple picutres of my latest mod. Sorry for the bad pics, but I haven't figured out how to get good images with my blackberry.

Specs:

Size: 70mm x 56mm x 18mm
Battery: 1200mah 7.4V Nominal LI-Poly - 8.4V fully charged
Switch: Touch
Output Voltage: 4.75V
Low Battery Warning: Yes, LED on at 6v
Voltage Drop Out: 0.2V at 1.5A
Charge while vaping: Yes

I haven't put in the touch posts yet. I am just using bare solid core wires right now until I figure out what I am going to use for the final contacts.

Works great, hoping to get about 3 - 4 days between charges.

Next to a 4AA battery box

The Guts

A better picture of the circuit board

 

[Sun Vaporer]

Great specs on this unit!! Can you post any inside pics for us? Sun

 

[e-pipeman]

Now THAT's a handy device! Portable and elegant. Which atty are you using? Good work!

 

[b00stzx3]

So it's like a rechargebale juicebox you don't have to take the batts out of?

 

[Laredo7mm]

The atty is a 901. I keep hearing about this 501. I might need to try some of those out.

I will post some pictures of the guts tonight when I get home. Unfortunately, it probably won't show much. The circuit board is turned on its side and all the wires running up to the front bezel will hide most of what is going on. She is pretty packed full. I am glad i went with the 1200mah, and not the 1500mah. The 1500 would definitely not have fit.

I could post a picture of the 3D model of the circuit board. That would actually show what the board looks like.

 

[Laredo7mm]

So it's like a rechargebale juicebox you don't have to take the batts out of?

IDK. I haven't seen the specs on the juciebox. But yes, no need to remove the battery to charge. There is a DC jack on the bottom that accepts the charging plug.

 

[e-pipeman]

The atty is a 901. I keep hearing about this 501. I might need to try some of those out.

I will post some pictures of the guts tonight when I get home. Unfortunately, it probably won't show much. The circuit board is turned on its side and all the wires running up to the front bezel will hide most of what is going on. She is pretty packed full. I am glad i went with the 1200mah, and not the 1500mah. The 1500 would definitely not have fit.

I could post a picture of the 3D model of the circuit board. That would actually show what the board looks like.

Two other attys that produce great vapour yet are small - Evo/M401 and DSE 103. I've never tried a 501 so can't give an opinion (well I could, but it would be worthless!).

 

[Ridewithme38]

How hard would it be to switch this from a Battery to power the Atomizer to a Battery to Charge the Batteries? is it just simply switching the connection from Male to Female or is there more to it then that?

 

[Laredo7mm]

How hard would it be to switch this from a Battery to power the Atomizer to a Battery to Charge the Batteries? is it just simply switching the connection from Male to Female or is there more to it then that?

You would have to step the voltage down to 4.2V if you wanted to charge a single battery. You would also probably want to have a battery monitoring IC to stop charging when the battery was fully charged, and also to limit the charging current.

 

[bzlytbeer]

Well done! Very nice board!

 

[kinabaloo]

You would have to step the voltage down to 4.2V if you wanted to charge a single battery. You would also probably want to have a battery monitoring IC to stop charging when the battery was fully charged, and also to limit the charging current.

In other words a recharging chip. At least to be maximally safe; a protected battery might allow a simpler design, but not altogether sure on that as haven't had time to look into this topic much.

 

[kinabaloo]

Well done! Very nice board!

But a bit too cryptic to reverse engineer; at least exactly

Nicely made Laredo

 

[Laredo7mm]

But a bit too cryptic to reverse engineer; at least exactly

Nicely made Laredo

LOL, thanks. Nah, nothing ground breaking here.

Just a voltage monitoring chip to turn on the LED. You know the chip I use, I posted in your thread about the low voltage warning light. A logic level gate mosfet for the touch switch. The now infamous UCC383 LDO, and a diode I had to drop the output voltage a few tenths. Could have gone with the adjustable version, but I had the 5V fixed laying around.

 

[RickB]

Excellent job Laredo. I'll be waiting impatiently for the commercial version.

 

[Zestok90]

Beautiful!
I want one! lol.

 

[mokeyjoe]

Looks nice.

What I really want to see is one that fits perfectly into a Zippo case, so that you can have interchangeable covers.

 

[Ridewithme38]

You would have to step the voltage down to 4.2V if you wanted to charge a single battery. You would also probably want to have a battery monitoring IC to stop charging when the battery was fully charged, and also to limit the charging current.

In other words a recharging chip. At least to be maximally safe; a protected battery might allow a simpler design, but not altogether sure on that as haven't had time to look into this topic much.

I've become desperate for a PCC for a 901 after seeing how convient it is with the 510...I'm really looking into modding one myself...i may just end up buying a 510 PCC and modifying it

 

[Carlos49]

for some reason I cannot see the pics...HMMMM!!

 

[souporvapor]

pics... what pics...
little red 'x' in boxes and no pics

 

[kinabaloo]

Looks like Laredo has done a mogur

Perhaps lured away by Janty, or ... ?

A complete waste of time, imo.

Isawhim hasn't been around for ages too. Many good people disappearing into the void !