Problem with the accumulator battery.

[Shardick]

Dear colleagues.
I have the following problem.
I shut down my notebook (full switch off). The accumulator before the switching off is 80%. The notebook is not connected to the ac/dc adaptor. Then after 24 hours I switch it on without the adaptor and I see the level of the accumulator is much lower (65-70% instead of 80%).
The next example. If I do not use my notebook for 2-3 days the accumulator level is going down from 80-90% to 50-55%.
And one more case. Switch off tonight at 30% level and the next morning the notebook after switching on is going to shut down because of the accumulator level less than 10%.
The notebook is new (1.5 weeks old). SZ7RVN/X.
Full accumulator at the full load (without Stamina) works more than 2.5 hours that is ok.

Therefore I have the problem:
It seems the accumulator is going down in switched off notebook that must not happen (I could understand if it would be 3-4% per day, but not 10-15%).
In service support they have said that is ok.
Is it really ok 'cos I'm not sure. Perhaps someone have the same problem.
Please, help me in this question.

[luisarn]

Hi,

If your battery last for 2,5 hours in normal working, then the battery is fine.
You got a Li-ion battery and it self discharges faster than the old nickel cadmium ones.
Take a look at the following link: http://en.wikipedia.org/wiki/Lithium-ion_battery

Best regards

[IntuitiveNipple]

With the levels of discharge over such short time-periods when the system is switched off that you report, either the battery is faulty or the system is not powered off but has been put into "Sleep" (aka S3 Suspend) mode where power is maintained to the system RAM although the CPU and other components are powered off.

The model number of the notebook (SZ7RVN/X) appears to be aimed at the Russian / Eastern European / Euro-Asian markets. What is the model number of the battery?

I use a VGN-FE41Z with three batteries - one VGP-BPS2C (5200 mAh) and two VGP-BPL2 (7200mAh). The spares often remain in storage partly-charged for several weeks between uses and do no report any loss of charge during that time. The same goes for the battery attached to the notebook when it is powered off. If the notebook is suspended the battery will discharge at a rate very similar to that which you have reported.

[Blencogo]

Hi Shardick and welcome to Club Vaio.

If this is happening when the Vaio is completely shut down, then current is being drawn from the battery by one of three things: -

1. Fully Charge the battery and remove it from the Vaio. Reinsert the battery after 24 hours and startup as usual. If there is still a battery drain then the battery is faulty and needs replacement by Sony.

2. There is an electrical 'short' in the battery or in an internal circuit board. Close down your Vaio normally and then remove the battery for at least 30 seconds. Reinsert the battery and check the charge level after 24 hours. If there is no battery drain, then there is no 'short'.

3. A battery process is not being shut down properly when Vista is shut down and continues to run draining the battery. This could be caused by the firewall, a software conflict or a Vista Update. Go to Task Manager just before shutdown and kill the ISBMGR.EXE process. Shut down your Vaio normally and check the battery condition by restarting 24 hours later. If there is no battery drain, the Sony Battery Manager Utility is not closing properly on shutdown.

Try to isolate the cause before you go back to Sony.

Let us know how you get on.

[Shardick]

Thank you very much. The problem was solved.