While Apple's Self Service Repair Store is the only place for "genuine" OEM parts, they typically focus on newer models. For a vintage device like the iPhone 5, high-quality aftermarket batteries from iFixit or RepairPartsUSA are your most realistic and reliable options.

If you just want to get that old phone running for as cheap as possible, check out marketplaces for affordable bundles.

Their iPhone 5 Premium Battery retails for about $7.99.

They offer a lifetime warranty on their "Premium Plus" line, which is a massive safety net for older tech. 4. Can You Get a Genuine Apple Part?

Still Rocking the iPhone 5? Here’s Where to Score a Fresh Battery