Here's the king tech of vaping batteries. Look to him for all the real stats, not a website, not a manufacturer, not a batteries label, not a vape shop employee.
More important than mah is amps. Needs enough amps to safely run the resistance. Mah is secondary.
My example is:
Molicell P26A 25A 2600Mah
Molicell P28A 25A 2800Mah
Samsung 30Q 15A 3000Mah
Max Amps Per Battery = (W / min voltage 3.2) x 0.95 mod efficiency
3.2ishV is when your regulated mod will start telling you 'low battery' or some such. Some may be set at 3.0V, see if you can look it up. Some mods have software by which you can change the low voltage setting. But if changing it, still need to use whatever number Mooch says it is for that batt...as a guide.
If my wattage was 50w / 3.2v = 15.6A x.95 =
14.8A
Mod efficiency is a guess unless you test.
If I wanted to run dual 18650's @ 90 - 100W, Q30 would be iffy and no headroom so I'd choose one with higher amps.
The chip would change only the mod's efficiency and not the battery voltage math.
Regulated mods are voltage regulators.
It may or may not have boost. Not the coil boost, - Buck and Boost. They all have buck or we wouldn't be able to turn the current down["buck" it down] to a lower wattage.
They don't all have boost. The ability to deliver more volts than the sum of the battery,,, or batteries if it holds more than 1.
