OF
Well-Known Member
@OF , I notice people are talking of overcharging the new flowermate battery. This is not productive in a lithium ion battery. They cannot be overcharged like an old nicd battery. They have no memory so even if you could overcharge it, it wouldn't remember.
After the initial full charge and discharge it is healthier to keep your battery between 30 and 70 %. This is how to make a lion live longer. Not overcharging it. And don't worry about leaving it on all night. They can't overcharge.
It depends on what the definition of 'overcharge' is? You're right, from an Engineering POV routing charging to the top is a bad idea. Please notice, however, I'm very careful to say each time you do this one time only and before the first discharge? While I well understand the technical issues, I'm using 'overcharge' from the owner's perspective......something I hope you can understand? The idea is to charge longer than normal so that the 'trickle' (sometimes called 'feeler') current (the one that unlocks locked batteries.....which we know are really cells in this case) can fully form them.
If you're following my similar rants in other threads (no reason you should of course) you'll find this is a common theme with me. While I disagree with the 'keep it above 30%' idea since it's cycles that normally kill Li-ions and storage time past about 80% (not so much the fact you got there or Teslas would be killing their battery packs left and right?) is the real issue? You'll also find I'm against 'use while charging' partly because it encourages default full time charging to 100%.
In fact, I took this idea so far with Solo (later adapted to all similar vapes, including FM) I designed and built a series of 'gadgets' to automatically terminate charge early. Here's the current version:
The normal charger plugs in upper left, pressing the button lower right turns on the transistor upper right and starts charging. When the charge profile current (sensed by the resistors center top) reach the threshold set by the adjustment screw on the blue pot below the transistor the controller cuts the charge early (typically say 85%?) and beeps the beeper to alert the owner. This cuts about 25 minutes from each recharge as well. Not shown is the '12 to 5 Volt converter' to charge the Mini and other "USB rechargable vapes". The version for the larger FMs (the ones that use 9 Volts instead) use the gadget for the DV Ascent which has the converter 'built in' and uses the same connector:
The converter is the little switching supply below one of the prototype gadgets (notice perf board and different locations of key parts).
I sent out 8 (I think) copies for Beta Test, several of 'the usual suspects' still post about them from time to time, no complaints or negative feedback. Our own Pipes was even considering making them for us, but the advent of the Air (user changeable 18650) killed that idea.
I'll continue to recommend the routine I do now. "Overcharge" (from a user POV since it's not possible in the classic engineering sense) the first time only, then run charge down each cycle to near the limit (easy to do with the Pro with it's battery meter, otherwise count sessions?) and if possible stop subsequent (routine) recharges early. For instance with Solo, where we have seven steps to work with the advice reads 'run it down to no light (or maybe even (ONLY) one more session)'. There a wide safety margin in Solo, the 'last light' is like 3.4 Volts). And, since they don't have a gadget to do it, I recommend stopping the charge 'when the last light is lit but the charge light is still flashing when possible', typically about 4.0 Volts. This doubles or more the battery life. Some good discussion of the technology behind this in simple language meant for wide reading available here:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Lots of other good battery info elsewhere at BU, if you don't know of them?
Regards.
Question on burnin's - sorry if it's been asked before.... Should you continually reheat or give it time to cool off in-between? Mouthpiece in or out?
I did mine back to back, no stem. I want it (and other vapes) as hot as possible. No stem increases the losses so the heater runs even harder.
OF