You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
I purchased a wall charger but ultimately opted to install a NEMA 14-50 plug instead, which works fine for my usage. I bought the charger used, but it is in the original packaging and complete. If interested I can get you a picture of what I have.