Here is a nifty iPhone battery extender that doubles as a stand. The UAG Lucent Power Battery with Kickstand supports multiple viewing angles. It has a 4000mAh battery. The stand is made with aluminum. It supports horizontal and vertical viewing. This battery extender is available in Black, Deep Ocean, Marshmallow and Orchid.
The device has a USB-C port for 18 watts of charging power. It also has LED lights to show battery level and charging status. The kickstand extends up to 180 degrees.[where to find it]