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Just get these and you'll never have to plug/unplug the micro USB again (apart from the first time).
Hey FYI: the issue MoonSugar described is really common. A lot of folks solve it by getting a magnetic USB end that fits in the crafty. That way there is no strain when plugging/unplugging the charger.
This is the type of product I'm talkin' about!
There are magnetic microUSB connectors that don't require abrading the USB port.
Magnetic charging cables?
if the port is just loose, you could always try this solution.
magnetic release micro usb cable. I use one, but a different brand. The part that plugs into the controller is really tight so there is no wiggle room. This way i can still use my play and charge battery pack.
but if you are 100% sure the port is busted, then this wont work.