Your spec is wrong. End of life of a Battery is 0.9 V. So the 4 V will be reached very quick. 1 Amp creates at least 1 V by the contacts (8 contacts and 4 of them, the minus, are often very poor). So even with cood battery connection ... forget it and do your design correct.
Marte
"Marte Schwarz"
** Nonsense - it is easily achievable.** Says who ?
** Bull.
End of useful life for a Ni-Cd or NiMH happens when the cell voltage is just over 1 volt - so the full capacity will be obtained.
From the supplied details - the OP's app needs 430 amp-seconds per day.
An 800 mAH Ni-Cd cell can supply 2800 amp seconds.
A 2500 mAH NiMH 9000 amp- seconds.
** One ohms worth of contact resistance at 1 amp is rather extreme.The use of a welded or soldered pack of rechargeables eliminates that issue.
........ Phil
Hi
You could try the battery simulator developed by Evgenij Barsukov.
I seem to remember that it includes common battery models.
He is also active in sci.chem.electrochem.battery, which might be a better place for your question.
Tom
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