This isn't the most exciting or exotic deal out there, but we've all got a clock, or a game controller, or a thing that we just need to power - and that's where having a big ol' bag of batteries can really come in handy.
Enter the Prime Day deals this year, where once again we're seeing a dramatic reduction in loads of batteries that you can grab to not have to worry about things going out of power for at least another year.
These aren't rechargeable, but rather just single use - so consider whether you can easily recycle them before making this rather gargantuan battery purchase (in volume, not in price).
(Not in the US? Scroll down for the best deals in your region).
Today's best Prime Day Amazon Basics batteries deals
Amazon Basics 100 Pack AA High-Performance Alkaline Batteries: $26.99 at Amazon
Look, this is just a lot of batteries. I've not tested them myself, but the reviews suggest that they can handle power as well as the ones that come in the box or Duracell's own basics brand, and they're hella cheap.
Amazon Basics 8 Pack AA High-Performance Alkaline Batteries: $6.04 at Amazon
And if you want to spend a little bit less, you can get an 8 pack for just over $6 - your choice, my friend.
My biggest question about these batteries is whether they're actually any good - I bought a lot of similar-looking ones from the local shop for not much money, and I might as well have just breathed on the clock I put them in - that would have given it more power.
The reviews - admittedly, on Amazon - suggest that these basic batteries can last as long as Duracell's basic range, or the ones that come in the box.
Combine that with the fact that every Prime Day these value batteries always end up in the top-selling lists, it can't be that much of a bad thing...
More Amazon Value battery deals
No matter where you live, you'll find all the lowest prices for Amazon batteries from around the web right here, with offers available in your region.
More Prime Day deals in the US
- Alexa devices: Fire TV Sticks from $12 and more
- Adidas: 50% off sneakers and sportswear
- Apple: Apple Watch 7 at cheapest price yet
- Apple: AirPods Pro drop to under $170
- Back to school: backpacks and stationery discounts
- Cell phones: Samsung Galaxy S22 Ultra - save $360
- College essentials: bedding, decor and cleaning sale
- Cooling: portable fans from $16.99
- Fashion: 66% off clothing, shoes and jewelry
- Groceries: up to 40% off coffee and food essentials
- Headphones: up to $125 off Sony headphones and earbuds
- Home: Levoit Air Purifier for $42.49
- Instant Pot: up to 29% off
- Kindle: up to 50% off ereader bundles
- Kitchen: up to $120 off blenders, coffee makers and more
- Laptops: $200 off 14-inch MacBook Pro
- Mattresses: $490 off Casper mattresses
- Portable Power: 30% off 10,000mAh power bank
- PS5: register for the next PS5 restock
- Security: Blink Home Security bundles from $44.99
- Smart home: Echo Show 5 smart display for $34.99
- Smart speaker: Save 60% on 4th gen Echo Dot
- Smartwatch: Amazon Halo View up to 55% off
- Speakers: JBL portable speakers from $29.95
- Storage: up to 39% off Samsung SSDs
- Tablets: Samsung Galaxy Tab S8 - save up to $120
- TVs: Smart TVs from $89
- Vacuums: save on Shark, iRobot and Bissell