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Author Topic: Super capacitor to replace RTC coin battery?  (Read 5651 times)
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Grand Blanc, MI, USA
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Some RTCs have built-in battery charging circuits, perhaps a super capacitor can be substituted.
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MCP79411/12 RTC ... "One Million Ohms" ATtiny kit ... available at http://www.tindie.com/stores/JChristensen/

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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.
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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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