Holy vapor! Then everything I knew is wrong. Thank you for this information.
So basically to take good care of the battery I have to avoid extremes (0% or 100%) and charge it till it reaches 5 bars? (The app shows 6 bars when it's fully charged)... I wouldn't know any other method to measure when it's ready to unplug.
I don't mind paying attention to the charging process as long as it guarantees better battery life. So this is gold for me. Thanks.
I'm sorry, since I don't have this vape I don't know the details of it's display. But I think you're on the track. The vapes I've checked seem to be pretty linear with their steps (battery types, specific models, can h ave different 'curves', but they are fairly uniform). Sometimes they are 'compressed' at the top, Solo for instance has a top step (seven) that's twice as big (.2 Volts) than the rest (which are .1 Volts each). There the 'blind way' is to wait until the top LED lights but the charge light is still flashing.
Another way is to immediately use it once it's fully charged, enough to use say 10% of the total? If it's good for say 8 sessions on a full battery, one will take it to under 90% charge.
This scheme really works. In fact I built a series of 'gadgets' to do this automatically. One of the latest versions:
The normal charger plugs in upper left, the cable goes to the vape. When you push the button (extends through a hole in the lid) the transistor in the upper right is turned on and the current used monitored by the 'shunt resistors' next to it. When, near the end of charge, the current tapers back to the level set by the blue adjustment screw above the switch the processor in the left lower corner cuts the charging current (early) and beeps the beeper to let you know it's done.
A fun bonus is since the reduced charge part of the curve is what gets cut off, when the charge is going slowly,
you cut 20 to 30 minutes off every charge. If you used to charge for a 90 munutes after say five sessions, now you can do the recharge in 60 or seventy.....every time. A bit of a win-win.
Too bad the coming of Air discouraged folks from making a commercial version of this gadget, it works for a lot of different vapes and products. Here's a prototype of one that converts the 12 VDC to lower voltage (like 9 for Ascent, FMs and others in that range) or 5 VDC for Air and all the rest that use USB ports for charging. No need to beat up the batteries.......
Fun stuff, glad you find it interesting/useful.
Regards,
OF
My Crafty reached 272 hours with original battery. 
I still get three 10-12 minute sessions on 180/195! I can't believe how great this little machine works. 
Your welcome for answering the question, providing you the link, and giving you my time. But keep continuing to pick arguments for "argument's" sake like in the other thread. Or just don't quote or refer to me please. 
But they also can take less than 2 minutes.
.
