cali8484
Member
I didn't realize how relevant this point was to me until I noticed that my coffee maker clock had lost nearly 10 minutes over the past week and was way behind.
Initially, I thought I was immune to this problem because I was under the impression that this was only an issue affecting older motorized clocks that run on AC power, of which I do not have any.
When I saw the digital clock on the coffee maker lose so much time, I did a little research and found this article, which indicates that a common chip used in digital clocks is actually tied to the mains frequency. I don't know what is in my coffee maker, but the correlation between it losing time (which I've never noticed before) and my testing of "off grid" mode suggest that it is indeed tied to the mains frequency.
Many things can be affected. See this thread for more info Powerwall 2 + UPS Connundrum - and solution