Pages: 1 [2]   Go Down
Author Topic: Super capacitor to replace RTC coin battery?  (Read 4334 times)
0 Members and 1 Guest are viewing this topic.
Grand Blanc, MI, USA
Online Online
Faraday Member
Karma: 71
Posts: 3538
CODE is a mass noun and should not be used in the plural or with an indefinite article.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

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

Offline Offline
Sr. Member
Karma: 1
Posts: 314
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

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.

Pages: 1 [2]   Go Up
Jump to: