Ok, so this is my first attempt at a mod. Also, my first attempt at soldering. I personally am quite please with the outcome 
So, I had an old m401 USB battery charger laying around. Thought I would put it to some good use since I've moved on to a 510. Since the m401 battery and the 510 atomizer are the same size, it makes this a fairly simple mod.
I started by opening the battery end of the charger and removing the circuit board and LED. The hole for the LED was a little small, so I drilled it out with a 5/16th bit and put in a Submini Pushbutton Switch (RadioShack #275-1571). I had to take the locking washer off to get a good fit, but I think it'll be fine.
The leads coming off the battery connector were too short to do much with, so they came off. Re-soldered new donor wires and attached the negative wire to the switch. Spliced in an extra segment of USB cable (original one was only about 6 inches long).
Oh, since this was a battery charger, there were no holes to let the atomizer breath. However, if you screw the 510 atomizer in all the way and give it a 1/4 turn or so back out, it breaths nicely and still works.
This thing hits like a champ! I don't know if I'll be able to go back to my battery now
Enjoy!
So, I had an old m401 USB battery charger laying around. Thought I would put it to some good use since I've moved on to a 510. Since the m401 battery and the 510 atomizer are the same size, it makes this a fairly simple mod.
I started by opening the battery end of the charger and removing the circuit board and LED. The hole for the LED was a little small, so I drilled it out with a 5/16th bit and put in a Submini Pushbutton Switch (RadioShack #275-1571). I had to take the locking washer off to get a good fit, but I think it'll be fine.
The leads coming off the battery connector were too short to do much with, so they came off. Re-soldered new donor wires and attached the negative wire to the switch. Spliced in an extra segment of USB cable (original one was only about 6 inches long).
Oh, since this was a battery charger, there were no holes to let the atomizer breath. However, if you screw the 510 atomizer in all the way and give it a 1/4 turn or so back out, it breaths nicely and still works.
This thing hits like a champ! I don't know if I'll be able to go back to my battery now
Enjoy!