Thank you Richard; I recall your earlier postings about laptop batteries
and have been in the habit of having mine on mains power only in actual
use - and set to take only 80% charge.
The problem here seems to have been resolved by this time leaving the
netbook charging overnight - my thinking was that if the cells had been
somehow charged unevenly, the trickle through charged cells would beef
up the rest.
Seems to have worked. For good measure, today I ran the netbook on
battery power for more than six hours until it went flat, then charged
it, all whilst running programs and wireless to router.
Stats and graphs on 'Power Statistics' look OK and I'll run that a few
times over the next days to see progress. Good idea of yours to unplug
the battery when not in use. TYVM.
I'm typing this on battery power and will again let it run to flat
before charging.
Others have pointed out that the netbook figure for running time
remaining in batteries is unreliable; I endorse that, though it does
indicate more or less correctly when it's about to run out.
Anyway, looks as though a new battery pack is not yet needed.
Great relief; the N145+ is a likeable little beast.
Tony Wood
(from Linux Netbook)
On 18/11/11 12:05, Richard Crossley wrote:
> On Wed, 2011-11-16 at 20:37 +0000, Tony Wood wrote:
>> Anyone else with one of these, please ?
>>
>> Mine is mostly used with the power unit plugged in and runs Ubuntu (now
>> 11.10.)
>>
>> Only problem has been an apparently sharp decline in battery life; it
>> indicates about 3½ hours when switched on fully charged but soon shows a
>> lot less, never runs more than an hour now. I reckon one of the cells is
>> dud because it is behaving like a torch with one cell failing.
>>
>> The battery connects to the netbook via a lot of pins, which seem clean.
>>
>> Bought it new in March 2011 so I may yet take it back - despite the hassle.
>>
>> Any thoughts welcomed.
>>
> Hi,
>
> I have been on about this for a while. Keeping a laptop battery in a
> laptop when it's fully charged and plugged into to mains is not good and
> shortens the battery life. There are a number of reasons why this is the
> case, but I have seen batteries die to the point of being unable to run
> long enough to boot the host to allow the user to login. This state of
> affairs is often reached within 12 months of purchase.
>
> With respect to my own experience of laptops (> 10 years) I have
> routinely kept the batteries charged - not flat and not at 100%. I also
> keep them in cool dry places - Laptop bag or cupboard.
>
> My current laptop - Fujitsu Siemens E8010, purchased in Sept, 2004 still
> runs on it's batteries for 2-3 hours per day. This is down from 8 hours
> when it was first bought.
>
> My netbook also runs for a significant amount of time, longer with
> wireless disabled in the BIOS (planes). I have also found that it
> discharges the battery when it is not operational. Those "powered" USB
> ports take juice even when nothing is connected. As a result I routinely
> remove the battery from the host.
>
> This site has some useful details.
>
> http://batteryuniversity.com/
>
> With respect to your N145, you need a new battery, don't bother with a
> used one.
>
> Kindest Regards,
>
> Richard C.
>
>
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