Here's some math on batteries. Because it's 2020, and who would have thought that we'd still be buying these all the time?
2 results
Brand: Streamlight
$23.13 / 12 batteries = $1.93/battery
ASIN: B000IXCO8K
Brand: Streamlight
$5.49 / 2 batteries = $2.74/battery
ASIN: B000JLHUNU