+
It's not just runtime either.
Larger batteries have the ability to keep better amperage at higher output.
Imagine a storm at night, a tree or something smashes into your roof & you need to go outside top thoroughly assess the situation.
You want a light that'll do a couple thousand lumens for a while & not having to worry about dimming or a battery going out.
If there's some big house issue at night, I'm taking a 2x26650 light, so a 21700 light is the next best thing...
There's little downside with added runtime/battery strength in anything battery powered.
It's not just runtime either.
Larger batteries have the ability to keep better amperage at higher output.
Imagine a storm at night, a tree or something smashes into your roof & you need to go outside top thoroughly assess the situation.
You want a light that'll do a couple thousand lumens for a while & not having to worry about dimming or a battery going out.
If there's some big house issue at night, I'm taking a 2x26650 light, so a 21700 light is the next best thing...
There's little downside with added runtime/battery strength in anything battery powered.