Greetings esteemed forum members,
I'm an electronics hobbyist and I had this idea. A voltmeter to measure the voltage of the battery in my mod. I wanted to measure the battery voltage when I juiced up my atty and I had just what I needed in my junk drawer. A piece of perfboard, an LED panel meter module, and 2 spring loaded pins (they're called "pogo pins")
Here's what I came up with. I have since mounted this in a small project box (I'm hoping the pic expands when you click on it).
Two spring loaded pins touch the center post and either negative post. I call this device "VapeVolt" and now that its here I don't know how I ever got along without it.
The Ni-MN batteries we use are quite intolerant of over-charging or letting the battery voltage dip too low. I used to go through 4 batteries or so a night, fearful that I would let the battery voltage dip too low. Now I understand the discharge characteristics of my battery and I let the battery get down to 3.2 volts or so and then swap it out. It turns out that I'm a a 2 battery a night guy.
I tried VapeVolt when I used an old mod that I don't like, a mod I let get really dirty. A fresh battery read 2.6 volts an the atty terminals, an indication of poor connections through the switch and the threaded tube sections.
I have also satisfied myself that efest batteries are every bit as good as VTC4's.
Pogo pins and three-wire DMM panel meters can be had on ebay for just a few bucks. For that matter, the cheapest Harbor Freight DMM (Digital Multi Meter) will work just fine.
I learned a lot about the way my batteries behave as I discharge them in my mod. I would recommend that anyone who drips try something like this, either by home-brewing something, or by using a DMM.
PS to Moderators. I have no intention of selling these, either now or in the future. I'm just a hobbyist who came up with an idea.
Cheers,
Rusty
I'm an electronics hobbyist and I had this idea. A voltmeter to measure the voltage of the battery in my mod. I wanted to measure the battery voltage when I juiced up my atty and I had just what I needed in my junk drawer. A piece of perfboard, an LED panel meter module, and 2 spring loaded pins (they're called "pogo pins")
Here's what I came up with. I have since mounted this in a small project box (I'm hoping the pic expands when you click on it).
Two spring loaded pins touch the center post and either negative post. I call this device "VapeVolt" and now that its here I don't know how I ever got along without it.
The Ni-MN batteries we use are quite intolerant of over-charging or letting the battery voltage dip too low. I used to go through 4 batteries or so a night, fearful that I would let the battery voltage dip too low. Now I understand the discharge characteristics of my battery and I let the battery get down to 3.2 volts or so and then swap it out. It turns out that I'm a a 2 battery a night guy.
I tried VapeVolt when I used an old mod that I don't like, a mod I let get really dirty. A fresh battery read 2.6 volts an the atty terminals, an indication of poor connections through the switch and the threaded tube sections.
I have also satisfied myself that efest batteries are every bit as good as VTC4's.
Pogo pins and three-wire DMM panel meters can be had on ebay for just a few bucks. For that matter, the cheapest Harbor Freight DMM (Digital Multi Meter) will work just fine.
I learned a lot about the way my batteries behave as I discharge them in my mod. I would recommend that anyone who drips try something like this, either by home-brewing something, or by using a DMM.
PS to Moderators. I have no intention of selling these, either now or in the future. I'm just a hobbyist who came up with an idea.
Cheers,
Rusty
