Drozd, thanks for explaining what the numbers on the batteries mean! That is extremely helpful!! One thing I'm wondering about is battery life, for, say, the 18350 vs. the 18650. It also seems to me that one of those telescoping mods would be good, since it seems that the reason they telescrope is so they can take either size battery? Also -- I use the pass-thru for my iTaste anytime I'm at the computer, which is most of the time, so I'd really like it if I could get a charger that also offers that pass-thru feature, or is that a separate thing, for this type of charger? I don't have an electrical outlet terribly handy to me at the computer, so I use the front USB port, and that works like a charm, can keep it more or less fully charged all the time, which I understand is better for the battery than letting it run down completely or near-completely.
Thanks bunches, y'all; I feel a lot more informed about what to look for, when I go shopping for mechs and all their paraphernalia.
Andria
Not a problem at all...
Yes that's why I suggest something like a telescoping one because you can use an 18350, or 18490, 18490 + kick2, or 18650 all in the same unit...
Yes battery life between charges depends on mAh...as well as how low resistance you're running too.. because lower resistance means higher wattage but also higher amp draw...
Below 1 ohm resistance will also dictate which battery you can safely use...but above it...battery size will dictate mAh which will dictate how long they last between charges...
There's actually an equasion that you can figure out that given a specific resistance you can figure amp draw and then given a battery at that amp draw approximately how many puffs you can take...but it's long and involved...
But if we just look at the AW IMR batteries for simplicity sake:
18350.....700mAh.....6A max drain...0.8 lowest safe resistance
18490...1100mAh....16.5A................0.3
18650...1600mAh....24A...................0.2
18650...2000mAh....10A...................0.5
So above 1 ohm....really, how long they last is only a function of mah and that may be an acceptable trade off for convienience of size (standard eGo out of the box was 600mAh for the longest time by the way, and not high drain IMR batteries either)
As for the chargers...for these type they are wall plugs...some have optional car adapters, some have displays that display current voltage of each cell...or selectable charging rates, some that can "rescue" cells that have been overdrained, and at least one I know of that has a 2A usb charging port so you could charge other things or possibly run a pass through off of...but you're going to pay more for the advanced features (example xtar vp2 http://www.xtardirect.com/products/xtar-vp2-charger )
But you aren't going to find a mech that works as a passthrough as well...
The real time voltage display is nice because you won't have to constantly use an DMM (digital multi meter) to constantly check your batteries (though most would suggest one for checking resistances expecially if you're gonna rebuild (though if you have a battery like some of the itaste ones or an mvp2 you can just use that)