i like this spreadsheet, but it doesn't take into account a battery's real mAh (often not what's on the sticker), and it doesn't take into account the realest mAh which is dependent upon the amp draw or how hard the battery is being run, and if it is even able to keep up or not. all batteries aren't created equal, though most 18650s will have the required drain rate for a low resistance atomizer, none of them will actually offer 3000 mAh with a 2.5A draw that a 1.5 ohm LR atty wants. if there is a way to account for the amp draw on the discharge rate, then account for the variance in vapeable voltage during the cycle of a battery, i.e what voltage does it start off at under load, how long does it stay there, at 3.7, at 3.5, at 3.2, etc...before cut-off, which dictates the amp draw from the atty at each stage and for how long, then we'd be getting more accurate numbers. i'm not sure how to even do that, but it seems the best way to account for battery life with a particular atty/carto configuration is to throw the juice in the avs, pop in a fresh battery, refill to the top if/when necessary, and vape until the atty no longer vapes due to decreased voltage. then we'll know how many mL of juice we can expect from a particular battery, and that will be much more universal and applicable to everyone than just saying 6 hours, or all day, or two days. the mAh ratings on most of the batteries are a joke, and most batteries under the size of 18650 are stressed beyond intended use with a LR atty to begin with. this impacts their runtime and the quality of the vape. taken all together, there may not be anyway to really nail a formula for this stuff, but if you know the few batteries that actually can discharge safely to meet the demands of the atomizer, test their real mAh up against their stated specs, and then run them at 2.5Amps and various degrees lower according to battery cycle and atomizer resistances, we'll ultimately know from the amount of juice consumed how long that battery is good for. for example if i vape 6mL a day, i can do it easily with an AW2900 mAh and LR 1.5 atty, but if i only vaped 3mL a day, i could go two or three days with this battery.
maybe rob will throw all his AW batts (IMRs at 14500 and 16340, protected ICR at every size bigger) on his CBA III and get real mAh ratings at 2.5A, or 1.6A for a Joye 510 atty, roughly 1.2Amps for a 901, a little less for a penstyle, and lower still for an HV or XHV atty. then take those numbers, graphs, etc., load up the GGTS and AVS and translate the values into actual juice vaped. the amount of time it took him to do it would be secondary to what he was actually
able to do...then the rest of us might have better ideas, or at least spreadsheets as to what we can get out of a given battery.
p.s. only threw rob's name out there because i know he has a battery analyzer, but don't expect him to start monitoring his vaping for battery life research.
8-o
