Controller (keyboard) works fine but battery slips out of compartment

Receive in a timely manner. Controller (keyboard) works fine but battery slips out of compartment. Have to keep opening back panel to push battery back in place. Light on box stays on until I manually turn off, no sleep mode that I've found. It doesn't recognize my external memory plugged into it. It worked fine in my old system. Would return but long process so not sure if I'll return or not.

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