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Topic: Super capacitor to replace RTC coin battery? (Read 6526 times) previous topic - next topic

Jack Christensen

Some RTCs have built-in battery charging circuits, perhaps a super capacitor can be substituted.
MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

RandallR

I saw one suggestion to use a DS1302 because it has a charging circuit already in the RTC.  I don't know how if differs in power consumption or if you might be able to charge the cap to a higher voltage and give you a long power off time.

I know a coin supercapacity.I hope it can help you.

http://www.kingwellbattery.com/products/coin-super-capacitor-c-v-h-series-ultracapacitor.htm

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