Don’t Use Cheap Chargers
Everyone loves a bargain, but if you are purchasing 3 wall chargers for $10, you should probably consider the reason why these products are so cheap. To be blunt, using those is simply unsafe. For one thing, most are not equipped with controllers so if you charge your battery past 100%, it is increasingly likely that you are overheating your phone’s battery.
Beyond that, there is legitimate danger in using them for your own safety and the safety of your home. Not only are there increased risks for being electrocuted, when these chargers overheat, but they have also even been found to be the source of home fires.