You're lucky to get help from Woody14619, someone who knows what he is about.

I hope the problem is the cable or the specific port on the PC -- they don't always work well. You could try a different PC.

I would get a desktop charger and an extra battery or two. Only use the usb when you need it.

Getting files via wifi shouldn't be all that bad. You might see if you can find a way of doing that which works better for you.