[gta02-core] Backup battery underdimensioned
alvieboy at alvie.com
Thu Aug 20 19:39:08 CEST 2009
Werner Almesberger wrote:
> The maximum backup battery charge voltage is 3.0V (typ), the backup
> battery presence detection voltage is 1.3V (typ). If we assume that
> the RTC does its worst and continuously draws 50 uA, a 100 uF cap
> would only last about 3.5 seconds.
Btw I just found these ones:
0.68F to 1F.
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