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Rockbox mail archiveSubject: some Ideas about Batteries in Powermanagemantsome Ideas about Batteries in Powermanagemant
From: Holger Lembke <holger_at_hlembke.de>
Date: Sun, 19 Jan 2003 20:34:50 +0100 Hi 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 http://www.stud.uni-karlsruhe.de/~usng/rockbox/ladeverfahren.html and looking at 'static int percent_to_volt_decharge[11]' 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? Any ideas? -- Holger Lembke Keep your Mailbox SPAM free: +49-531-334676 Disruptor OL http://hlembke.de/dol/Received on 2003-01-19 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |