Does anyone have any idea as to where the VTC5's came from? I mean which laptop battery packs used them? I've been searching around on the internet and can't find any info...
Sony has a plant in the Phillipines that makes the Sony Vtc batteries. Originally they were made in Japan, but that plant was badly damaged in the earthquake. This resulted in a shortage of these batteries recently. The new plant should be near up to full speed soon.
These batteries were designed for use in high-power tools (and not specifically for our vaporizers).
I would not recommend pulling or harvesting old or used batteries from computers or power tools. Your batteries are the most important item in your vape setup. Be sure to purchase new AUTHENTIC brand name batteries from reputable vendors, such as: RTD Vapor, Illumination Supply, Orbtronics, or Lighthound. I don't recommend purchasing cheaper batteries off of Ebay or Amazon, as there are a lot of fake or rewrapped "brand name" batteries on the market.
Think about it. You use your vaporizer in your hand and bring it up to your face. There have been more and more reports of venting batteries and exploding mods recently. Do you really want to increase this risk by using inferior batteries?
Battery Basics for Mods: IMR or Protected ICR?
Deeper Understanding of Mod Batteries Part 1