At night I had 100% battery, about 20 hours later 90%

[leftisthominid]

So I just putted my battery in, it still was 97%. So my laptop is pulling charge when off... Anyway I can figure out what I can do to stop it?

[leftisthominid]

Bumping

Anyone else with an N55SF see this problem?

[JOSEA]

Originally Posted by Mgr1397

I just got my new asus laptop (N53SV)
i'm wondering whats the best way to keep the battery in good condition.
I only take it to school once a week, so during the other days should i remove the battery and just run it off AC power?

OR should i keep the battery in the laptop with the ac plugged in 24.6 ?

There is a lot of good information here:
Remove battery when not in use?
Congats on the new machine also!!

[Katana Paul]

Originally Posted by leftisthominid

Bumping

Anyone else with an N55SF see this problem?

Had mine a couple of months. It usually sits with the A/C plugged in and left in standby when not being used.

I'll experiment with the battery and come back to you with results...

[JOSEA]

Originally Posted by Sxooter

Does your laptop support the "charge while off" USB ports? If so, can you disable that in the BIOS? Most machines with that will drain the battery even when off slowly...

Good call the N55F does support that feature.
OP - Try removing AI charger software and test, if there is no BIOS setting to disable that feature.
(Are you using version Version V1.0.2 ?)
If not you could also try to update ASUSTeK Computer Inc. -Support- Drivers and Download AiCharger

[leftisthominid]

Originally Posted by JOSEA

Good call the N55F does support that feature.
OP - Try removing AI charger software and test, if there is no BIOS setting to disable that feature.
(Are you using version Version V1.0.2 ?)
If not you could also try to update ASUSTeK Computer Inc. -Support- Drivers and Download AiCharger

I don't have AiCharger installed. My BIOS is set to defaults. When my computer is off and unplugged, I do not have charging USB ports.

These days I just remove the battery when I unplug. I asked someone who posted a review on Amazon.com if they have this issue and they responded "A few percent is what I would typically lose overnight". I think this is just a design problem. I sent ASUS a tech inquiry online about this over a week ago, no response...

[braincruser]

Do you unplug first then shut down, or do you shut down completelly then unplug it. because during the shutdown computer disables all powersaving options and can spend quite a lot of power. 3-5% battery charge is completelly possible.