35 Last-Chance October Prime Day Deals to Shop Under $50

Duracell Optimum AA Batteries ($23, originally $42)

Batteries are a household essential that can cost a pretty penny, but luckily we can stock up on them while they're on sale during Prime Day. This pack of 28 double A batteries from Duracell will be so useful for your household. You can also consider getting the Duracell Coppertop AA + AAA Batteries, 56 Count ($43, originally $51) if you need both double and triple A batteries.