Hello All,
Once in a while an older piece of equipment comes up with a 'non-volatile memory loss' or some similar message. Usually the little NiCd in there is flat and when it is equipment that's out of support it'll be either unobtanium or very expensive. Even when price wouldn't matter, most likely the replacement had been on the shelf forever and may not last. Unfortunately these are mostly 2 cell bundles, so that is
2.4V.So, here is the question: The usual batteries in stores are 3.6V (for cordless phones etc.). Would there be any reason not to be able to use these instead? Charging is typically from a 5V rail and they are meant to retain some static RAM content. I don't know if there were static CMOS RAM where Icc would go up if it Vcc were 3.6V instead of 2.4V on standby.
Regards, Joerg