Battery recalibrate ideas
in [Laptops]
|
Prev: cleaning screens
Next: OEM marking stops W7 upgrade?
From: Barry Watzman on 31 Oct 2009 17:00 And, as I have said before, there was a thread on this subject on this board a number of years ago, it went on for 6 months, thousands of posts from hundreds of contributors. It was overwhelming, essentially everyone had Bill's experience (and Bill and I don't agree on much !!): Leave a battery in laptop that is always plugged in, and it destroys the battery over 6 to 24 months. There may be some exceptions, but that is the general rule. You can argue all you want that it shouldn't be that way, and theoretically, you might even be right. But the overwhelming evidence of laptop users is .... that this is the way that it is. And reality beats theory every time. BillW50 wrote: > In news:Xns9CB5A2381E7BAnoonehomecom(a)74.209.131.13, > Larry typed on Sat, 31 Oct 2009 19:56:47 +0000: >> "BillW50" <BillW50(a)aol.kom> wrote in news:hchv5u$h68$1(a)news.eternal- >> september.org: >> >>> 2) Battery is left in the laptop 24/7 >>> >> Horseshit. > > I have four batteries only two years old that were always left in the > laptop. I do my own research. And they were never used on battery power > and always on AC and charged. Want to buy them? They are worthless. Yet > the ones I left in a drawer are still doing just fine. Go figure, eh > Larry? > > I am still doing research and the ones left in are losing capacity > overtime. Anybody can do this research. Just leave one battery in and > one battery out. And give it two years and then test the capacity of the > two batteries. And the evidence is clear as a bell. >
From: htnakirs on 1 Nov 2009 08:31 > 1) Battery is 3 years old > > 2) Battery is left in the laptop 24/7 > > 3) Laptop will only run 10 minutes on battery and shutdown > > If the answer is yes to all in the above, regardless of the power meter > reading, your battery is shot. > > -- > Bill > Asus EEE PC 701G4 ~ 2GB RAM ~ 16GB-SDHC > Windows XP SP2 The answer to the last question is NO, in my case. Eventhough the meter shows critical level after 10 mins, the battery will support the laptop for well over an hour - the LED will blink, but the laptop continues till the battery dies and the laptop shuts down. So this is not a question of the Li cell losing its capacity, rather the onboard circuitry going bonkers. But, from the response it seems there is no routine to recalibrate the onboard circuitry. I guess I'll have to use it this way till the battery loses capacity. By the way, how frequently would you suggest that the battery should be removed to prolong it's life?
From: BillW50 on 1 Nov 2009 09:04 In news:57b9c901-f6e7-4fe3-907e-0a2e82ec54d3(a)v36g2000yqv.googlegroups.com, htnakirs typed on Sun, 1 Nov 2009 05:31:15 -0800 (PST): >> 1) Battery is 3 years old >> >> 2) Battery is left in the laptop 24/7 >> >> 3) Laptop will only run 10 minutes on battery and shutdown >> >> If the answer is yes to all in the above, regardless of the power >> meter reading, your battery is shot. > > > The answer to the last question is NO, in my case. Eventhough the > meter shows critical level after 10 mins, the battery will support the > laptop for well over an hour - the LED will blink, but the laptop > continues till the battery dies and the laptop shuts down. So this is > not a question of the Li cell losing its capacity, rather the onboard > circuitry going bonkers. > > But, from the response it seems there is no routine to recalibrate the > onboard circuitry. I guess I'll have to use it this way till the > battery loses capacity. Okay. Which battery program are you using? The windows one, or another one? And I would be curious to know what something like BattStat v0.98 tells you. http://users.rcn.com/tmtalpey/BattStat/ > By the way, how frequently would you suggest that the battery should > be removed to prolong it's life? It is best to leave it out whenever you are not using it on battery power or charging it. Although you have had 3 years out of it and that is doing well if it was left in. As this suggests the battery doesn't get too warm too deteriorate very much. Do you believe this is true? -- Bill Asus EEE PC 701G4 ~ 2GB RAM ~ 16GB-SDHC Windows XP SP2
From: Barry Watzman on 2 Nov 2009 16:56 This "mass poster just out of High School" is in his 60's, got his ham radio license in 1963, was operating 50,000 watt broadcast radio and TV stations by himself with a 1st class FCC license in 1965, has a BSEE, US Patents and copyrights, over 30 years of experience in the computer industry with a number of PC and laptop manufacturers, is A+ and Network+ and Microsoft certified. And thinks you are full of it. Larry wrote: > > Yes, be very careful that 50 years of electronic experience, including > everything to do with battery powered equipment from Nickel-Iron "Edison" > cells to Lithium-Polymer battery maintenance may rub off on you..... > > Ignore him completely and listen to the mass posters just out of high > school. > >
From: htnakirs on 3 Nov 2009 09:30
> > Okay. Which battery program are you using? The windows one, or another > one? And I would be curious to know what something like BattStat v0.98 > tells you. > > http://users.rcn.com/tmtalpey/BattStat/ > I used XP and Linux and the onboard battery meter behaviour is consistent. > > It is best to leave it out whenever you are not using it on battery > power or charging it. Although you have had 3 years out of it and that > is doing well if it was left in. As this suggests the battery doesn't > get too warm too deteriorate very much. Do you believe this is true? > > -- > Bill > Asus EEE PC 701G4 ~ 2GB RAM ~ 16GB-SDHC > Windows XP SP2 Never touched the battery to test it's temps. But, definitely the ambient temp would never have exceeded 30 deg C. Thanks for all the help, to all. I must say, I had half expected someone to say that freezing the battery would help - as would "boosting". These seem to be the common tips on youtube! Freezing is something that I intend to do soon. Don't see the harm in it. I'll inform if this causes any change in battery meter accuracy. |