[34S] battery warning indicator / question

[Bernd Grubert]

(04-02-2015 09:39 PM)John Galt Wrote:  I performed some measurements that may interest you. The WP 34S will run reliably all the way down to 2.35 V.

Thanks for providing the voltage values. This means that a large capacitor might help. If e.g. the residual voltage of a weak battery is 2.8V a voltage drop of 0.45 is tolerable. If the capacitor has an internal resistance of 30 Ohm and 1.5F capacity, it can deliver 10mA for about 22s until the voltage gets below threshold.
I will try to get one and check whether it helps.
Regards
Bernd