In Part 1, I showed you the schematic and how it works. Now I show you how I build it and demo it in action.
All the parts used in my mod came from:
Radio Shack - the box, pushbutton, and battery holder (that I cut up for piece parts) - I could have gotten these from madvapes but happened to stop by my local Radio Shack for the fun of it.
madvapes.com - the LED, resistor, battery-atomizer connector
batteryjunction.com - They have a $30 deal on 2 protected 2400maH 18650 batteries and charger. Wow!
Target - Hot glue
Harbor Freight - JB stick Epoxy putty
Be extremely careful working with lithium ion batteries. ALWAYS use a PROTECTED Lithium Ion battery so that it will not overcharge or under-volt because they will explode and burn. Recharge these batteries outside on concrete under constant supervision in case they explode and burn while recharging. Unplug the charger and remove the battery(ies) as soon as charging is complete.
Please do NOT attempt to make a pv e-cig mod unless you are an experienced electronic technician or a well-seasoned electrical-mechanical engineer. Each solder connection is critical, make it mechanical and then solder. Always remember, exploding lithium ion batteries can burn down your house and/or kill you and the ones you love!!!
This video is for educational curiousity interest only. Mod at your own risk.
Filmed with a Kodak Zi8
Edited in Windows 7 with Windows Live Movie Maker
Are you still recharging your batteries outside on concrete jan? haha love your videos and you are the nicest and sweetest vaporer on youtube!! :) I just finished all of grimmgreen's videos, now I'm going to watch all of yours!
DontLeaveMeLucile 3 days ago
@DontLeaveMeLucile When it's a lithium battery, yes, I recharge them outside on concrete. I'm leaning more towards using nimh batteries now, using two 4.8V nimh in series in a variable voltage mod that uses the same components as my homebuilt black variable voltage mod (it's in another of my videos). It's going fine so far, waiting to see the lifetime of the batteries at this point. Nimh batteries are far safer than lithium. Thanks!
steeljan 1 day ago
@steeljian apparently many sites are saying that using incorrect resistance atty will kill the battery which I do not understand the reason why. shouldn't it be the opposite that using LR atty on high voltage will kill the atty instead?
utubeweisong 3 months ago
@utubeweisong Yes, using a LR atty on high voltage can and probably will kill the atty. Due to the high amperage pulled by a LR atty, it can also potentially kill the battery and the mod as well. So yeah, 3.7V is plenty with a LR atty. You don't want to try vaping a LR atty at 5V or anything near that.
steeljan 3 months ago
@steeljan I want to do a box mod using 2 x 18650 battery to provide 5v vaping but I not sure how to go about it and it semantics. To say the batteries must be arrange in parallel with both positive facing the same direction? what ohm resistor should I use such that the current will not be too strong to kill my LR atty of 1.5ohms?
utubeweisong 3 months ago
@utubeweisong You'd have to either parallel the batteries and then run them through a buck circuit to raise it from 3.7V to 5V, or else you'd have to put them in series to make over 7V and then run that through a voltage regulator to bring it down to 5V. You're not going to be able to vape 1.5ohms on 5V, for a bunch of reasons. And putting in a current-limiting resistor, I suspect, would just get you a very very hot resistor. Realistically, 3.7V is plenty for a 1.5ohm atty.
steeljan 3 months ago