DIY Ecig NiMH Box Mod

So, I bought an eGo-T starter kit, and the charger that came with it was broken. I tried to get back to the guy I bought it from to swap it out, but it’s a really long drive, and our schedules never match up. A co-worker was nice enough to let me use his charger for a couple nights, but then the weekend came, and I felt the impending doom of a dead ecig battery.



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I attempted to charge one of my ecig batteries with direct USB voltage. I fried it (we’ll be chopping it up in this mod).

So, I tried searching all over the web for an easy box mod I could do now, for on the cheap, but I was rather disappointed. I couldn’t find any info on anyone using anything other than lithium batteries. Having a vague idea of how to put it together and what I needed, I headed to the store to aquire a 14500 Lithium battery and charger.

OOPS! I couldn’t find one. What a surprise. It’s a special order item.

I ruled out alkaline batteries because they would pump too much voltage into my atomizer ($15 bucks each…), and I would be replacing them every day most likely. Not very practical. I settled on 1.2 volt NiMH AA batteries. I actually found a charger that will charge 1-4 batteries (most only charge in pairs of two), so that was a nice bonus, because I decided to use three batteries, for 3.6 volts (charged voltage is actually a little higher than this, as is the case with all batteries that I know of).

After some tinkering, I pieced together a box mod that works and I’m happily vaping away.

Disclaimer: I made this mod out of necessity, not for performance gain, not for more vapor, not for cool-factor.

Here’s my parts list:

  • NiMH Batteries (Mine are 2150 mAh supposedly)
  • NiMH Charger
  • RadioShack Project Box (big enough to hold 3 batteries in holders)
  • Momentary on push button switch
  • 22 gauge wire (I had some old Christmas lights hanging around)
  • Dead eGo Battery (you could order an atomizer connector, but what fun would that be?)

Tools you’ll need:

  • Soldering iron
  • Solder
  • Sharp knife

Tools you’ll want (you’ll probably need the Dremel if you’re chopping open an old eGo battery. If you’re very determined, you could use a hacksaw):

  • Drill
  • Dremel tool (cutting disk and sanding drum)
  • Some kind of handy hands or gorilla arms soldering helper, to help hold wires in place

So, I bought an eGo-T starter kit, and the charger that came with it was broken. I tried to get back to the guy I bought it from to swap it out, but it’s a really long drive, and our schedules never match up. A co-worker was nice enough to let me use his charger for a couple nights, but then the weekend came, and I felt the impending doom of a dead ecig battery.

I attempted to charge one of my ecig batteries with direct USB voltage. I fried it (we’ll be chopping it up in this mod).

So, I tried searching all over the web for an easy box mod I could do now, for on the cheap, but I was rather disappointed. I couldn’t find any info on anyone using anything other than lithium batteries. Having a vague idea of how to put it together and what I needed, I headed to the store to aquire a 14500 Lithium battery and charger.

OOPS! I couldn’t find one. What a surprise. It’s a special order item.

I ruled out alkaline batteries because they would pump too much voltage into my atomizer ($15 bucks each…), and I would be replacing them every day most likely. Not very practical. I settled on 1.2 volt NiMH AA batteries. I actually found a charger that will charge 1-4 batteries (most only charge in pairs of two), so that was a nice bonus, because I decided to use three batteries, for 3.6 volts (charged voltage is actually a little higher than this, as is the case with all batteries that I know of).

I spent about $7 on parts for the¬†actual box. However, I spent about $30 on the batteries and charger (I bought 8 batteries so I could always have a fresh set. I have two extras that I’ll use for my headphones or something).

After some tinkering, I pieced together a box mod that works and I’m happily vaping away.

Disclaimer: I made this mod out of necessity, not for performance gain, not for more vapor, not for cool-factor. And it’s not my fault if you catch on fire or blow up. Be especially careful if you’re salvaging a 510 connection from an old eGo battery, because it could catch on fire or explode.

 

eCig NiMH Box Mod

DIY eCig NiMH Box Mod

 

 

Here’s my parts list:

  • NiMH Batteries (Mine are 2150 mAh)
  • NiMH Charger
  • RadioShack Project Box (big enough to hold 3 batteries in holders)
  • Momentary on push button switch
  • 1x 2 AA Battery Holder
  • 1x 1 AA Battery Holder
  • 22 gauge wire (I had some old Christmas lights hanging around)
  • Dead eGo Battery (you could order an atomizer connector, but what fun would that be?)

Tools you’ll need:

  • Soldering iron
  • Solder
  • Sharp knife

Tools you’ll want (you’ll probably need the Dremel if you’re chopping open an old eGo battery. If you’re very determined, you could use a hacksaw):

  • Drill
  • Dremel tool (cutting disk and sanding drum)
  • Some kind of handy hands or gorilla arms soldering helper, to help hold wires in place

I started out by removing everything inside that I didn’t need, like the little things that you screw a PCB into and the grooves on the side. I did this, because I discovered the three batteries didn’t fit into the size box I bought very well.

Once I had the box prepped and made sure my battery holders were going to fit in there, I chopped open the old eGo battery (I’ve heard you can pull some eGo batteries apart if you have a fitting to go over the cone thing, but I didn’t have any luck), about 3mm below the bottom of the button to remove the atomizer connection. I wanted to leave a ridge there so it wouldn’t come out.

I actually had to drill out the electronics. I was lucky because the red positive wire stayed connected to the atomizer connection. If you’re careful, you can probably get it to stay connected to. it connects to the center and it would be difficult to solder a new wire there.

Then, I drilled my holes for the switch and the atomizer. I soldered the batteries together in a series, positive to negative, and connected the positive lead to the switch, and the negative to the casing of the atomizer connection. Then I superglued the atomizer connector in. I superglued the 2 AA battery holder in by accident, because I used too much superglue, but it worked out alright. I don’t recommend gluing the third battery holder in if you have the same size box as me, because you won’t have room to remove the battery. Make sure you leave some extra wire on your solders to that battery, so you can pick it up some to take the battery out.

Once everything’s soldered together and the glue has dried, insert the batteries, screw an atomizer on there, press the button, and vape away.

Here’s a diagram showing the inside, and the positive and negative connections. The white-ish stuff shoved into the bottom of the atomizer connection is actually a piece of soft silicone earplug. I did this so the positive wire wasn’t flopping around touching the ground. I also coated the solder connection I made between a pre-existing wiregoing to the center of the atomizer with some nail polish, just in case. You can see an image without the squiggly lines by clicking this image.

eCig NiMh Box Diagram

eCig NiMh Box Diagram

To me, it seems the vapor production on a full charge is a little better than with the default eGo-T 650mAh battery. Will I keep using it when I can afford to get a new battery and charger? We’ll see.

DIY Vapor

About DIY Vapor

Houston, TX
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