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Batteries on the back of a water cooler?


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Hi, please educate me, if you will, on what the heck this is? The batteries are hooked up to wires that go to the circuit board/microchip.

Edit: This is a competitor's machine, not mine.

Honestly, I have no idea. If I had to hazard a guess my thought would be that battery is a backup in the event of a power failure to prevent the flow valve from opening uncontrolled and flooding the breakroom.

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