Wireless Keyboard A1314 chews up batteries

Has anyone found out the reason that this happens. The keyboard suddenly has started chewing up batteries at a very quick pace (approx. 2 days). I have read many posts on various web sites from over the years but to my knowledge no one has pin pointed the problem and solution.

I have monitored the voltage and it drops quite dramatically.

Any "technical suggestions" greatly appreciated.

Thanks

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