How can you get the HTC Raider fixed?

My HTC Raider x710e has two problems one is that when i hooked it up for charging it discharges when it reachec about 35% it starts charging the second problem is that its charging time is very slow it took more than 10 hrs for full charging. when i hooked up with my PC it took 3 hrs to full charge. pls give me a solution.

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