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?
21 results
Size: C
$16.73 / 24 batteries = $0.70/battery
ASIN: B07MWHQCPW
Brand: Rayovac Size: C
$10.01 / 12 batteries = $0.83/battery
ASIN: B07GPPGRZP
Size: C
$4.44 / 4 batteries = $1.11/battery
ASIN: B081FH7N9Z
Brand: Rayovac Size: C Size: D
$32.36 / 24 batteries = $1.35/battery
ASIN: B07R1QJ2N4
Brand: Energizer Size: C
$12.99 / 8 batteries = $1.62/battery
ASIN: B00003IEMA
Brand: Energizer Size: C
$12.99 / 8 batteries = $1.62/battery
ASIN: B0044DA3NS
Brand: Rayovac Size: C
$9.83 / 6 batteries = $1.64/battery
ASIN: B075785KZN
Brand: Duracell Size: C
$20.94 / 12 batteries = $1.74/battery
ASIN: B076DH8G1G
Brand: Rayovac Size: C
$15.48 / 8 batteries = $1.94/battery
ASIN: B00V4KW1N4
Brand: Rayovac Size: C
$11.70 / 6 batteries = $1.95/battery
ASIN: B00BT2IXOI
Brand: Duracell Size: C
$16.99 / 8 batteries = $2.12/battery
ASIN: B000FD6RTA
Brand: Energizer Size: C
$8.69 / 4 batteries = $2.17/battery
ASIN: B000YHWDQS
Brand: Energizer Size: C
$4.49 / 2 batteries = $2.24/battery
ASIN: B01N9W7WA5
Brand: Energizer Size: C
$4.49 / 2 batteries = $2.24/battery
ASIN: B00451Y23Q
Brand: Duracell Size: C
$9.29 / 4 batteries = $2.32/battery
ASIN: B00000JHQC
Brand: Duracell Size: C
$5.49 / 2 batteries = $2.74/battery
ASIN: B0000AXHRU
Brand: Panasonic Size: AA Size: AAA Size: C
$109.78 / 32 batteries = $3.43/battery
ASIN: B08D9KN8QT
Brand: Energizer Size: C
$7.99 / 2 batteries = $4.00/battery
ASIN: B00164BTMC
Size: C
$19.55 / 4 batteries = $4.89/battery
ASIN: B07PHCVSSS
Brand: Energizer Size: C Size: D
$20.28 / 4 batteries = $5.07/battery
ASIN: B0854Y4V7H
Brand: School Smart Size: C
$11.24 / 2 batteries = $5.62/battery
ASIN: B003V1AJME