I'll find some place to buy them. If the He4 will work (Only vape normally under 20-30w) I can just pick that up on my next order. All the ones i've seen on Amazon have bad reviews. So that would be a last resort. I am noticing the Pico is eating my batteries rather fast since I have started sub ohming. Going through 2 a day.
That's why I recommended 3 different high quality 3000mah 20a CDR cells and a highly reputable vendor/dealer earlier in the thread.
The 3 best batteries available for a combination of run time and independently tested & verified accurate CDR amp rating.
The LGhe4 is a good safe 2500mah 20a cdr battery, but why not increase your between recharge cycle run time by using a 3000mah 20a cdr cell.
You can buy 2 high quality batteries and pay shipping from a reputable source and be assured you receive authentic cells for a few dollars more than one VTC4 from DFW.
Popular myth / misconception is with a regulated power device battery selection isn't as important.
None offer any protection from the user installing an insufficient CDR, low quality, wrong chemistry or counterfeit battery.