First off thanks for all replies
I usually run coils between .9 and 1.2 ohms on a regulated mod at between 10 and 20 watts seldom do I go over 20 watts
would it be safe to run a 15amp battery and still be within safe limits
I would like to use longer lasting batteries than the 25r's I'm using now
There isn't much in an 18650 above 3000mAh, and that drops you down near 10A.
At 3000, the increase over a gently used 2500 is probably only 12-15% duration.
There's only so much they can pack in that size.
I'd suggest the very solid 20A 3000mAh LG HG2 and call it a day.
They'll still be there for you if/when you use higher wattage.
I have a few mods limited to 30/40 watts, no use anymore for many of my attys.
I have a few older TC mods without SS mode... same deal.
I'm glad I don't have any batteries that are low capability, you
might be too.