@StormyPinkness, PM Sent.
Okay, so I've been doing some battery life testing of the Medium/Low power heater module (0.68 ohm), which is my favourite so far.
This is my testing so far, from full battery to 3.7v.
Each session is 3 hits, small chamber load, basket sandwich.
First draw = 5 second pre-heat, 10 second draw. 15 seconds total ON time.
Second draw = 3 second pre-heat, 10 second draw. 13 seconds total ON time.
Third Draw = 3 second pre-heat, 10 second draw. 10 seconds total ON time.
Aim was for all draws to produce satisfying vapor.
After each short session, the voltage is recorded with a multimeter.
Battery Tested: LG HE4.
Starting Voltage, fresh off charger, 4.13v
1. 4.09v
2. 4.06v
3. 4.03v
4. 4.01v
5. 3.98v
6. 3.96v
7. 3.94v
8. 3.91v
9. 3.89v
10. 3.87v
11. 3.84v
12. 3.82v
13. 3.80v
14. 3.77v
15. 3.75v
16. 3.74v
17. 3.72v
18. 3.70v
Total draws: 54
It seems to be a pretty steady .02v drop per session.
Obviously these results are not very scientific, and everyone has vastly different vaping techniques and chamber loads.. so battery life is a variable thing that will depend on your usage.
But this might give you guys a rough idea of what the battery life is like with this particular setup and usage routine.
Battery testing will continue beyond 3.7v, down to where the performance starts to drop off, then pre-heat and draw times will be adjusted. More on that later!