This cheap gadget converts AA batteries into a D battery - here's how

Stuck with a dead flashlight and no D batteries? Discover the $7 hack that converts your kitchen drawer's AA batteries into a ...
SlashGear

3 Times It's Probably More Cost-Effective To Use Rechargeable Batteries

We may receive a commission on purchases made from links. Although rechargeable batteries are gradually becoming the norm, single-use batteries like the regular AAA ...
Consumer Reports

When to Use Rechargeable Batteries

If you’re trying to find ways to move away from single-use items for the sake of the planet, don’t overlook the humble AA (or AAA, or C, or D) battery. Rechargeable batteries can cost more than twice ...