At First Class Cellular Repair, we only sell accessories that we would use. There are many cases out there that are designed to look cool, but do not provide any protection to your device. Companies like Otterbox, Mophie, and Lifeproof all have proven track records with their products. This does not mean that their products are indestructible, but that your device stands a much better chance when in use.
There are also a lot of companies that make chargers for your phone. Many companies that produce aftermarket cables and chargers use cheap wiring, rubbers, and other components. Those chargers can cause damage to your devices charge port, battery, and can sometimes even cause an electrical shock to kill the logic board. We have a company that we trust all of our cables to come from and they also offer a limited lifetime warranty on all of their charging cables.