Battery Question

[obe]

I have two main ecigs: a Prodigy V1 and a GGTS. They both work great with 18650 or 17670 3.7 volt batteries for lower voltage vaping. However, when I try to stack 2 shorter batteries to vape at 6 volts or higher the batteries quit working after a very short period of time. When checked on a multimeter the bottom most battery is always drained below 2 volts while the topmost battery measures over 3 volts. The types I've tried with this problem are Tenergy RCR123A 3.0v 750mAh LiFePo4 and AW Black IRC123 3.7v 750mAh.

Could someone who successfully uses two batteries for the higher voltages please tell me exactly what batteries I should buy to avoid this problem?

Thanks

 

[petem]

I can help you but if you can get your post up to 15 then you can post in the general or mod fourm or a wait for an answer here (lots of verterns still come to this area as well).