But if I am using Efests in my Vamo with 1.8 ohm coil why should I bother about their max amperage? I'd rather look on the price and mahs. It's a bit out of real life - giving advises based only on subohming. I do not subohm, I do like Efests.
amp ratings... if true... directly correlate within reason to internal impedance...
which then correlates to voltage drop under load...
which then correlates to how close to empty you can draw your batteries before the voltage goes below the set minimum of your device...
which then correlates to how long your vape will last on a single charge...
and also is a determining factor in the overall health of the cell and the likelyhood of it achieving and/or exceeding it's rated cycle life.
yes, these are exacerbated as you pull more amps from the cell, but they're still relevant at any output level.
now, of course, a 30 amp cell isn't going to make much of a difference at 7 watts. but a 10 amp cell should show improvements over a 6 amp cell with all other specs being equal.
but one thing to consider with the 6 amp cells. their operating voltage range can go down to 2.5V... so you lose the capacity advantage over the higher amp rated cells and you're again relying on a low impedance to get the most out of the cell... which isn't there...
so in your example, you may be better off with the higher mah cells. in your case, it would likely prove prudent to stick with panasonic cells that are likely in your efests. you may find they do or don't perform a little better since you may or may not get fresher cells by not having an extra step in the supply chain and you may get better cells as panasonic is putting their own name on the, so likely to have the better cells of the batch while selling ones that might have a higher impedence to rewrappers.
i dunno.
but you'll still be able to get a better price for the same cell if you shop around.