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?
217 results
Brand: ACDelco Size: AA Size: AAA
$42.67 / 200 batteries = $0.21/battery
ASIN: B013BOUZNS
Brand: Powermax Size: AA
$21.99 / 100 batteries = $0.22/battery
ASIN: B08FDPNBF2
Brand: ACDelco Size: AAA
$23.50 / 100 batteries = $0.24/battery
ASIN: B00PIAWX2K
Brand: ACDelco Size: AAA
$24.98 / 100 batteries = $0.25/battery
ASIN: B009PPR5OU
Brand: ACDelco Size: AAA
$12.20 / 48 batteries = $0.25/battery
ASIN: B00FF8KQJC
Brand: ACDelco Size: AAA
$12.20 / 48 batteries = $0.25/battery
ASIN: B00YMSORX2
Brand: ACDelco Size: AA Size: AAA
$33.89 / 120 batteries = $0.28/battery
ASIN: B08MZQ4YGX
Size: AA
$28.39 / 100 batteries = $0.28/battery
ASIN: B01B8R6PF2
Brand: Maxell Size: AAA
$10.70 / 36 batteries = $0.30/battery
ASIN: B002PY7P4S
Size: AAA
$30.19 / 100 batteries = $0.30/battery
ASIN: B01B8R6V2E
Brand: ACDelco Size: AA
$12.42 / 40 batteries = $0.31/battery
ASIN: B006QZCR5O
Brand: ACDelco Size: AA
$15.27 / 48 batteries = $0.32/battery
ASIN: B07JY6Y2KP
Brand: ACDelco Size: AA
$15.27 / 48 batteries = $0.32/battery
ASIN: B01I31F0PW
Brand: Rayovac Size: AA
$17.91 / 48 batteries = $0.37/battery
ASIN: B00XWP91KA
Brand: Rayovac Size: AAA
$26.96 / 72 batteries = $0.37/battery
ASIN: B06XSKY4P2
Brand: Rayovac Size: AA Size: AAA
$21.98 / 54 batteries = $0.41/battery
ASIN: B07YT5WP8H
Brand: Rayovac Size: AA Size: AAA
$21.98 / 54 batteries = $0.41/battery
ASIN: B01NAF36V7
Size: AAA
$9.81 / 24 batteries = $0.41/battery
ASIN: B001PII7OM
Brand: ACDelco Size: AA
$10.17 / 24 batteries = $0.42/battery
ASIN: B00CFPLI90
Brand: ACDelco Size: AAA
$32.28 / 72 batteries = $0.45/battery
ASIN: B08QJK87C1
Size: AA
$9.34 / 20 batteries = $0.47/battery
ASIN: B081FGSWTJ
Brand: Energizer Size: AAA
$25.18 / 48 batteries = $0.52/battery
ASIN: B079GS4YQS
Brand: Rayovac Size: AA
$12.99 / 24 batteries = $0.54/battery
ASIN: B07574ZLQX
Brand: Rayovac Size: AA
$16.85 / 30 batteries = $0.56/battery
ASIN: B002YEBESM
Size: C
$13.76 / 24 batteries = $0.57/battery
ASIN: B07MWHQCPW
Size: AAAA
$4.63 / 8 batteries = $0.58/battery
ASIN: B00LH3DTYS
Brand: Energizer Size: AAA
$13.89 / 24 batteries = $0.58/battery
ASIN: B007YASGWS
Brand: Energizer Size: AA Size: AAA
$28.39 / 48 batteries = $0.59/battery
ASIN: B087GMJXMC
Brand: Enviromax Brand: Fuji Size: AAA
$29.99 / 48 batteries = $0.62/battery
ASIN: B00EEB9M2I
Brand: Rayovac Size: AAA
$15.20 / 24 batteries = $0.63/battery
ASIN: B00SS7TBLQ
Brand: Energizer Size: AAA
$16.27 / 24 batteries = $0.68/battery
ASIN: B0031Y8LS0
Brand: Rayovac Size: AAA
$12.29 / 18 batteries = $0.68/battery
ASIN: B07GPPNB8J
Brand: Energizer Size: AA Size: AAA
$33.08 / 48 batteries = $0.69/battery
ASIN: B08777KTRJ
Brand: Energizer Size: AA
$16.56 / 24 batteries = $0.69/battery
ASIN: B002MVF136
Brand: Duracell Size: AAA
$16.99 / 24 batteries = $0.71/battery
ASIN: B004K95PBQ
Brand: Energizer Size: AA
$17.30 / 24 batteries = $0.72/battery
ASIN: B07TXNX6S2
Brand: Enviromax Brand: Fuji Size: AAA
$17.49 / 24 batteries = $0.73/battery
ASIN: B00A90CWN4
Brand: Rayovac Size: AA Size: AAA
$43.96 / 60 batteries = $0.73/battery
ASIN: B07R2NRVD4
Brand: Duracell Size: AA
$14.68 / 20 batteries = $0.73/battery
ASIN: B002UXRXEG
Brand: Rayovac Size: AAA
$14.87 / 20 batteries = $0.74/battery
ASIN: B00D9QK4JE
Size: AAA
$18.07 / 24 batteries = $0.75/battery
ASIN: B07NWYCVPT
Brand: Duracell Size: AA
$18.22 / 24 batteries = $0.76/battery
ASIN: B0035LCFNQ
Brand: ACDelco Size: AAA
$15.26 / 20 batteries = $0.76/battery
ASIN: B01FVPQDYU
Brand: Energizer Size: AA
$12.25 / 16 batteries = $0.77/battery
ASIN: B004RFF57C
Brand: Rayovac Size: AA
$23.48 / 30 batteries = $0.78/battery
ASIN: B019FWQEHG
Brand: Rayovac Size: AAA
$23.48 / 30 batteries = $0.78/battery
ASIN: B019FWQEPI
Brand: Energizer Size: AA
$12.99 / 16 batteries = $0.81/battery
ASIN: B003X5DHXG
Brand: Moultrie Size: AA
$12.99 / 16 batteries = $0.81/battery
ASIN: B079LCH77R
Size: AAA
$9.85 / 12 batteries = $0.82/battery
ASIN: B007B9NXAC