Damn this battery for not coming fully charged...stuck waiting for a bit.
Actually, you should be very glad it came at something like 70% charge. If you look into it, storage at 100% charge, especially at higher temperatures, can seriously destroy capacity.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Notice the discussion about half way down, around table 3. Storing it at controlled temperatures for a year costs you 1/5 of the total capacity? Bad karma I think.
While this is 'industry standard' (delivery at about 2/3 charge), not surprisingly Arizer seems to know what they're doing......still.
Enjoy your Air. For maximum battery life I suggest following the stuff outlined in that BU article.
Fully charge before first use. Don't cheat. I recommend 'overcharging' this first time only, say four hours past when it says it's done? This sets the maximum charge that 18650 will ever take, it only degrades slowly over time from there (or faster if you beat it up......).
After that, run it down, enjoy 3 or four sessions before recharging, but try not to 'run it flat' (not at all good for it). Then, if possible/convenient stop the charge a bit early. Notice stopping 10% short (less than half a session) will
double the battery cycle life? Stop it another 10%, still less than a whole session, and you get four times as many cycles before it's dead. This is a bigger deal with Solo or other vapes where the owner can easily/cheaply replace the 18650. To that end I built a series of 'Gadgets' to automatically shut down charging, one of which looks like this:
The upper board turns charging on when the button is pushed and monitors the current. When it senses a drop in that (stored peak) current set by the blue 'pot' adjustment above the button it drops charging and beeps the beeper a few times to wake me up. The lower board converts the 12 VDC needed by Solo to 9 as used by FM, Ascent and some others. A similar version drops it to five VDC for Air and a whole hose of vapes and mods that charge from USB ports.
Fun stuff, for those of us that don't get out enough. But you should be happy your 'battery' (really a cell since there's only one of them.....) came partially charged......it's a good thing
OF