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: School Smart Size: C
$11.24 / 2 batteries = $5.62/battery
ASIN: B003V1AJME
Brand: School Smart
$5.81 / 1 batteries = $5.81/battery
ASIN: B003V1BPUY