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real time clock after power fail

drw
in ISY994

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Posted

Recently I had an extended power fail. The power was off for about 8 hours. After the power was restored I discovered that the time was behind actual time about 2 hours. I assume there is a battery keeping the clock running. Is there something wrong with my ISY? It is only about 5 months old. My experience with computers is that the CMOS battery will support the clock for a very long time (months at least).

drw,

 

There's a capacitor which keeps the clock running for 6 hours. As such, there's nothing wrong with your ISY.

 

With kind regards,

Michel

 

Recently I had an extended power fail. The power was off for about 8 hours. After the power was restored I discovered that the time was behind actual time about 2 hours. I assume there is a battery keeping the clock running. Is there something wrong with my ISY? It is only about 5 months old. My experience with computers is that the CMOS battery will support the clock for a very long time (months at least).
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