Source : https://askopinion.com/importance-of-buying-genuine-quality-iphone-parts-and-accessories
The most important and popular accessory is a charger. A phone with a dead battery is as good as dead. This is why there should be a charger with you at all time just in case charge went out. A wall charger is the most common and the most efficient because it is easy to use and is faster that the rest when it comes to filling your battery with life.
Source : http://www.pcworld.com/article/2025906/how-to-choose-a-mobile-charger.html
Source : https://www.linkedin.com/pulse/how-choose-good-usb-data-charging-cable-your-mobile-phone-kevin-chen
Source : http://www.digitaltrends.com/cars/best-car-phone-chargers/