Battery killed?

Alastair Johnson alastair at truebox.co.uk
Wed Nov 12 11:06:12 CET 2008


Joachim Ott wrote:
> Looks like I have killed the battery of my gat02v6. While I was working 
> on the PC and having the FR laying besides (running Om2007.2), I noticed 
> the red LED flashing once in a second. I took out the battery because I 
> couldn't reboot. I booted from flash (currently with the newest FSO), 
> all looked normal. When the system was up, I plugged in USB, the screen 
> went black and the red LED began flashing like above. I took out the 
> battery, measured and it showed only 2.99V. Then I attached external 
> power, booted Om2007.2 from SD card, when it was up I connected USB, 
> removed external power and put in the battery - shortly after the screen 
> went black bla bla rhabarbar...

The flashing red LED is (or used to be) an indication of a kernel panic 
which would explain why it was unresponsive.

> With the battery from the other FR (fully loaded, shows 4.35V) 
> everything is fine again. Have I killed the battery by over-using the 
> device? I boot about 10 times a day, from flash or SD, playing with GSM, 
> GPS and WLAN. Is it possible to charge that battery ever again?
> 
> This are the last messages before Om2007.2 died (the last try from above):
> 
> Nov 12 02:00:36 om-gta02 user.info <http://user.info> kernel: usb0: full 
> speed config #1: 500 mA, Ethernet Gadget, using CDC Ethernet
> Nov 12 02:00:36 om-gta02 user.err kernel: power_supply bat: driver 
> failed to report `voltage_now' property
> Nov 12 02:00:37 om-gta02 user.err kernel: power_supply bat: driver 
> failed to report `voltage_now' property
> Nov 12 02:00:37 om-gta02 user.info <http://user.info> kernel: 
> ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
> Nov 12 02:00:45 om-gta02 user.err kernel: power_supply bat: driver 
> failed to report `voltage_now' property
> Nov 12 02:00:46 om-gta02 user.debug kernel: modem wakeup interrupt
> Nov 12 02:00:46 om-gta02 user.err kernel: power_supply bat: driver 
> failed to report `voltage_now' property
> Nov 12 02:00:47 om-gta02 user.debug kernel: usb0: no IPv6 routers present
> Nov 12 02:01:37 om-gta02 user.warn kernel: AR6000 disconnected
> Nov 12 02:01:46 om-gta02 local0.info <http://local0.info> 
> /usr/sbin/gsm0710muxd[1394]: gsm0710muxd.c:609:pseudo_device_read(): 
> Logical channel 1 for (null) closed
> Nov 12 02:23:27 om-gta02 syslog.info <http://syslog.info> syslogd 
> started: BusyBox v1.11.1
> Nov 12 02:23:27 om-gta02 user.notice kernel: klogd started: BusyBox 
> v1.11.1 (2008-08-05 02:00:09 CEST)
> Nov 12 02:23:27 om-gta02 user.notice kernel: Linux version 2.6.24 
> (oe at buildhost.openmoko.org <mailto:oe at buildhost.openmoko.org>) (gcc 
> version 4.1.2) #1 PREEMPT Thu Aug 28 01:48
> 
> The "driver failed to report `voltage_now' property" is because at that 
> time it was on external power. No messages were logged after I put in 
> the battery.



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