Use of AC when the battery is at 100%? (S7-391)

Hello world!

I have been affected by the worst support from Acer, I have no problem with the ultrabook himself (Acer Aspire S7-391) but I have some doubts about pilots and other things, that they have avoided answering many ways. So, here's the thing:

This ultrabook has all drivers that could be use the AC power when the battery charge reaches 100% to avoid tampering with the battery?

The thing is that while I have 100% of the battery and the ultrabook is connected to the power adapter, it always seems to be draining the battery power and recharging it back to being 100% all the time.

When I ask about the drivers, who might or might not be installed, I just need to find a way to access this functionality if possible, and if I can't, I need to know as soon as POSSIBLE so that I can start unplug the laptop right after that the battery has reached 100%.

Thanks in advance.

As you said with Connector 2 power pins can also disconnect the battery charge. It can disconnect the power supply from the battery charging circuit when the battery reaches a particular % with the laptop running load in power cables. I do not think that your computers support portable setting the level of charge of battery to a % custom. Your laptop must have a particular hardware and BIOS that supports. In some laptops, the BIOS has the ability to define a particular % of battery charge. I read somewhere that windows 8 do not support this feature, old version of windows (Vista) support this feature.

Some write up I found online to help you.

Memory effect

First of all, it is necessary to unfold a myth that persists in the minds of many people.

The effect of stack memory.

In the basis of lithium batteries, it is in fact a myth, it applies only to the old nickel-based batteries. Therefore fully discharge and recharge the battery are completely useless and even harmful as discussed below.

The modern lithium battery can be charged independently of its current percentage, because he has absolutely no negative effect in his performances.

Should I remove the battery when the a/c is connected?

Many users of portable computers have this question and we will answer it right now:

The answer is: YES and NO, it depends on the situation.

Have a fully charged battery and the laptop is connected is not harmful, because as soon as the load level of 100% of the battery stops receiving the energy load and this energy is shorted directly on the power of the laptop system.

However, there is a downside to keep the battery in the holder when the laptop is plugged in, but only if he currently suffers from excessive warming caused by the hardware of the laptop.

So:

-In normal use, if the laptop does not get too hot (CPU and hard drive around 40 ° c to 50 ° c) the battery must remain into the Jack of the laptop;

-Intensive use, which leads to a large amount of heat produced (i.e. games, temperatures over 60 ° c) the battery should be removed the socket in order to avoid unwanted heating.

The heat between the fact that he has 100% load, is the great enemy of the lithium battery and not the plug, as many might think so.

Battery discharging

Full battery discharges (until the computer laptop power shutdown, 0%) should be avoided, because he insists a lot on the battery and may even damage it. It is recommended to perform partial discharge to levels of capacity of 20 ~ 30% and frequent accusations, instead of performing a complete discharge followed for a full charge.

Laptop PC battery contain a gauge of capacity that allows us to know the exact amount of stored energy. However, due to the charge/discharge cycles, this sensor tends to be inaccurate overtime.

Some laptops include in their BIOS, tools to recalibrate the battery meter, which is nothing else than a full discharge followed by a charge complete.

So to calibrate the gauge, it is desirable, in all cycles 30 discharge, a full uninterrupted discharge, followed by a too, non-stop, full charge.

An inaccurate gauge may have to the fact that the capacity of the battery are values are false. The battery can report that he still has 10% of capacity, when in fact it has a much lower value, and this causes the computer to the unexpected shutdown.

Cycles of discharge (or charge) are to use this charge battery (100%), but not necessarily all at once.

For example, you can use the laptop for a few minutes in a day, using half of its e ability then it load completely. If you did the same thing the next day, it can be considered a discharge cycle, not two, so it may take several days before finishing a complete discharge cycle.

Tags: Acer

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