Review on 4100MAh Battery Case For IPhone X/Xs/10 - Ultra Slim, Portable & Protective Charging Solution! by Steve Modesto

As one who constantly forgets his charger and cords on airline flights, I decided to try the Swiller case. I have a continuous glucose meter that uses my iPhone to report my blood glucose levels. Well I noticed on my last long flight that the app for my glucose readings really sucks up the power and I was freaking out that I might run out of power. When I got back home I immediately ordered this battery case. The case fits very good and is very easy to use. You charge the case, slide your phone in (it fits very nice and snug), then whenever your phone's battery is getting low you hold down a button on the back of the case for 3 seconds and it begins charging your phone back to a full charge. There is also a 4 light meter on back to let you know the level of charge.