Rockbox mail archiveSubject: some Ideas about Batteries in Powermanagemant
some Ideas about Batteries in Powermanagemant
From: Holger Lembke <holger_at_hlembke.de>
Date: Sun, 19 Jan 2003 20:34:50 +0100
Ok, the story. My AJBR has a distracting capacity display. If I start using
it, it has 100%. Then the capacity display drops rather fast to something
around 60%. It falls slowly to 40% and 30% sometimes comes back and than
quickly falls down to low percentages and my AJBR stops working.
After looking at
looking at 'static int percent_to_volt_decharge' I think it is easy to
see why it is this way.
The voltage values simply dont give the resultion to get a better idea
about the capacity at the flat part of the discharge curve.
If this is right, could there be a better way of showing the capacity?
Is it possible to calculate it by runtime? Simply have a thread that
checkes the on/off state energy consuming items (hdd, backlite etc), knows
the drain and capacity and does some math?
Or use the history (that from charging) for a better calculation?
-- Holger Lembke Keep your Mailbox SPAM free: +49-531-334676 Disruptor OL http://hlembke.de/dol/Received on 2003-01-19