First DIY

[Nightly_Paradox]

After finally getting all of my parts in. I got my first DIY under my belt.

Hammond 1591BTRD
black Alpinetech switch
parallel IRLB3034PBF mosfets
Keystone dual 18650 battery sled
FatDaddyVapes V5 Regular 510 connector
12k Ohm resistor

14G stranded copper wire used on the high current sections and 22G stranded coper wiring used on the lower current sections

Mosfets:

Battery sled and wiring:

Finished project:

 

[Nightly_Paradox]

Had to make a few changes to the setup.

First change being I dropped the Fatdaddy V5 in favor of the V4 with the 22mm cap on it. I had encountered an issue where a piece of the ceramic had broken off of the insulator.

Next I added in some magnets, and also added in some foam stick on pads I got from work to help absorb vibrations and to keep the batteries still.

The epoxy job isn't the best but if the lid is in place you cant even really tell they are epoxied in from the outside.

 

[Skyfntm]

Very nice for your first build. I really like the color of that box! If I remember correctly I build a dual 26650 dna 30 in one of those boxes. But it was blue!

 

[Nightly_Paradox]

So far she's working well. I'm thinking about adding in a homemade voltage booster that's controlled by a potentiometer. The only thing is I'm looking at using surface mount electronics to allow it to fit inside the box that I have

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[Nightly_Paradox]

Did a bit of reworking to the box

I ended up making the wire off the drain shorter, and fixing the solder point on the right side terminal and cleaned it up better.

I also fixed the bridged wire on the bottom of the sled and made it solid using solder, I had also added a 6.3v 330 microfarad capacitor across the batteries, and then hot glued everything down where it was all going to sit.

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[Nightly_Paradox]

Changed it up since I got another DIY in the works once the parts arrive. The new DIY (going to be wired for parallel) will be my EDC.

Rewired my current box to series with a 10v 1000 microfard capacitor. Came out a lot cleaner on the soldering this time.

First fired it using my 0.15 ohm coil to test it and it worked beautifully. Which on fully charged batteries is 470w. I can safely say with parallel mosfets it's easily 500w capable with the weak link being the batteries. At 470w it has a 56 amp draw which is way over the comfort level of stressing these LG HE4 batteries.

Finished inside shot.

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