The iPhone XS is one of the most powerful smartphones on the market. We all wish its battery lasted a bit longer though. The Oisle Battery Extender for iPhone XS can help. It is a compact battery that sits on the back of your phone and provides it with 4500mAh extra capacity.
This battery extender is 9mm thick. It has a smart integrated circuit to safely power your device. The Oisle battery extender is available in Lightning, Type-C, and Micro USB versions.[where to get it]