Re: Battery losing charge while off [Devel Digest, Vol 75, Issue 63]
On 06/01/2012 10:12 AM, Yioryos Asprobounitis wrote: Done See attached screenshot. I don't see anything that looks obviously wrong. So here's a test to see if the EC is going to sleep or not. Run the battery down to where the red LED is active. Then power off the laptop. If the EC goes into stop mode the red LED should go out after a few seconds. If you press a game button the EC should wake up briefly and the led will turn back on then in a few seconds go back out. -- Richard A. Smith One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off [Devel Digest, Vol 75, Issue 63]
On Thu, May 31, 2012 at 12:41 PM, Yioryos Asprobounitis wrote: > > > >> >> On 05/24/2012 11:59 PM, Yioryos Asprobounitis wrote: >> >> >> laptop serial number. Was it a >> >> pre-production XO-1 ? >> > >> > Both XO-1s used to test the battery are C2 machines >> > #CSH7470023EA >> > #SHF80701C99 >> > The batery in question is >> > #00802091012110003588 >> >> So let me review and see if I have all the details. >> Seems like each new >> email has more new details. >> >> - Battery does not lose charge outside the laptop. >> - Tested the battery in 2 different laptops and the loss is >> the same. >> Roughly 12% overnight. >> - A different battery in those same laptops does not lose >> 12% > > Correct in all 3 (but ~12% in a 24h period) Ah... 24 hours... Looking back you said that in the original email. So 12% is about 370mAh which at the nominal battery voltage should be 2.2 to 2.5 Wh. Over 24 hours that a draw of 90 to 100 mW. Thats high for the EC not going to into stop mode but perhaps there's enough error in the measurement to skew the results. My 1st guess is that something in the battery EEPROM is making the EC unhappy and its not going into stop mode when the power is off. Put the funky battery in the laptop and boot it. Then stop at OFW and do a 'bat-dump-banks'. Then send on the output. -- Richard A. Smith One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off [Devel Digest, Vol 75, Issue 63]
> > On 05/24/2012 11:59 PM, Yioryos Asprobounitis wrote: > > >> laptop serial number. Was it a > >> pre-production XO-1 ? > > > > Both XO-1s used to test the battery are C2 machines > > #CSH7470023EA > > #SHF80701C99 > > The batery in question is > > #00802091012110003588 > > So let me review and see if I have all the details. > Seems like each new > email has more new details. > > - Battery does not lose charge outside the laptop. > - Tested the battery in 2 different laptops and the loss is > the same. > Roughly 12% overnight. > - A different battery in those same laptops does not lose > 12% Correct in all 3 (but ~12% in a 24h period) ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
On 05/31/2012 08:18 AM, Richard A. Smith wrote: So let me review and see if I have all the details. Seems like each new email has more new details. I'm asking you to verify that these facts are true based on your testing. - Battery does not lose charge outside the laptop. - Tested the battery in 2 different laptops and the loss is the same. Roughly 12% overnight. - A different battery in those same laptops does not lose 12% In case its not clear. If you have not done this test with a different battery in the 2 laptops then please do so. -- Richard A. Smith One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
On 05/24/2012 11:59 PM, Yioryos Asprobounitis wrote: laptop serial number. Was it a pre-production XO-1 ? Both XO-1s used to test the battery are C2 machines #CSH7470023EA #SHF80701C99 The batery in question is #00802091012110003588 So let me review and see if I have all the details. Seems like each new email has more new details. - Battery does not lose charge outside the laptop. - Tested the battery in 2 different laptops and the loss is the same. Roughly 12% overnight. - A different battery in those same laptops does not lose 12% -- Richard A. Smith One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
> >>> One of my XO batteries (~2years old) is loosing > about > >> 12% of its charge in 24h period while the XO is > off. > >>> This is not related to a specific XO but rather > the > >> battery itself. > >> > >> How are you measuring the loss? > > > > Just looking at the Sugar battery monitor in 2 XO-1s > running 21011o0 and os880 (but this one with FW updated to > q2f08) > > > >> > >> What happens if the battery is not installed in an > XO? > > > > Actually, it does NOT discharge when off the XOs ! > > > > I guess I should get some power logs. > > Anything else? > > So now that you know its not the battery what are the > symptoms? > You turn off the XO at night and then in the morning > the battery is > 12% less? Yes! (sorry missed that mail earlier) > > -- > Richard A. Smith > One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
--- On Thu, 5/24/12, John Watlington wrote: > From: John Watlington > Subject: Re: Battery losing charge while off > To: "Yioryos Asprobounitis" > Cc: "John Watlington" , devel@lists.laptop.org > Date: Thursday, May 24, 2012, 8:52 PM > > On May 24, 2012, at 2:56 PM, Yioryos Asprobounitis wrote: > > >>> One of my XO batteries (~2years old) is loosing > about > Can you please provide the battery serial number, as well as > the > laptop serial number. Was it a > pre-production XO-1 ? Both XO-1s used to test the battery are C2 machines #CSH7470023EA #SHF80701C99 The batery in question is #00802091012110003588 Best > > Cheers, > wad > > ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
On May 24, 2012, at 2:56 PM, Yioryos Asprobounitis wrote: >>> One of my XO batteries (~2years old) is loosing about Can you please provide the battery serial number, as well as the laptop serial number. Was it a pre-production XO-1 ? Cheers, wad ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
On 05/24/2012 02:56 PM, Yioryos Asprobounitis wrote: One of my XO batteries (~2years old) is loosing about 12% of its charge in 24h period while the XO is off. This is not related to a specific XO but rather the battery itself. How are you measuring the loss? Just looking at the Sugar battery monitor in 2 XO-1s running 21011o0 and os880 (but this one with FW updated to q2f08) What happens if the battery is not installed in an XO? Actually, it does NOT discharge when off the XOs ! I guess I should get some power logs. Anything else? So now that you know its not the battery what are the symptoms? You turn off the XO at night and then in the morning the battery is 12% less? -- Richard A. Smith One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
> > One of my XO batteries (~2years old) is loosing about > 12% of its charge in 24h period while the XO is off. > > This is not related to a specific XO but rather the > battery itself. > > How are you measuring the loss? Just looking at the Sugar battery monitor in 2 XO-1s running 21011o0 and os880 (but this one with FW updated to q2f08) > > What happens if the battery is not installed in an XO? Actually, it does NOT discharge when off the XOs ! I guess I should get some power logs. Anything else? > > -- > Richard A. Smith > One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Battery losing charge while off
On 05/23/2012 10:04 AM, Yioryos Asprobounitis wrote: One of my XO batteries (~2years old) is loosing about 12% of its charge in 24h period while the XO is off. This is not related to a specific XO but rather the battery itself. How are you measuring the loss? What happens if the battery is not installed in an XO? -- Richard A. Smith One Laptop per Child ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Battery losing charge while off
One of my XO batteries (~2years old) is loosing about 12% of its charge in 24h period while the XO is off. This is not related to a specific XO but rather the battery itself. I did run batman.fth bat-recover just in case but made no difference. Also tried to clean the contacts of any possible dust and humidity with no result either. I did not see any relevant info on the wiki about this specific issue and I was wondering if this 'can happen' and if there is anything that can be done about it, other than replacing the battery. Thx. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
