Discussion Forums > Technology

-Urgent- Need answer and Acer VS Asus

<< < (8/11) > >>

namaiki:

--- Quote from: Clannad_92 on September 16, 2012, 09:33:20 AM ---one more thing, my friend just said that i should charge the battery  8 hours for a couple of times...let say 2 or 3 times, and after that charge it until full only...is it true?

--- End quote ---
I really don't think that is necessary or I don't quite understand. The battery would probably finish charging in 3 hours or less.

Saras:
There will be problems if you completely deplete the battery, but there is no risk of that happening if you just simply leave the laptop until it shuts off. There will, however, be problems if you will attempt turn it on some ten to twenty times after that point.

For the first few charges it is generally recommended to fully charge the battery and to discharge it to <10%. However, I cannot comment as to why.

kitamesume:

--- Quote from: namaiki on September 16, 2012, 09:14:15 AM ---
--- Quote from: Clannad_92 on September 16, 2012, 09:11:10 AM ---
--- Quote from: namaiki on September 16, 2012, 08:52:07 AM ---
--- Quote ---what happen if i left alone an emptied laptop battery?

--- End quote ---

If left alone, it could become damaged and not be able to charge back up.

--- End quote ---
let say for a few hours? is it okay?

--- End quote ---

I would not bring a battery down to zero if not necessary. There really shouldn't be any need to do it, and batteries generally come half charged or so when you purchase them new as well.

--- End quote ---
laptop is pre-programmed hardware-level to shutdown at certain battery levels, they wont drain it to death. same with leaving it docked at the power plug, it wont overcharge to death.

megido-rev.M:
OK, ok. The deal with Lithium ion batteries is that preferably you don't want to always drain it out completely, maybe at 3/5 of the way at most usually. The scenario when fully discharging would really be needed is when its charge meter somehow goes slightly off, which might happen noticeably maybe after a month of frequent full recharges. The explanation escapes me, but I assume it has to do with the electrical circuits. Unlike old nickel batteries, there isn't really a problem with frequent short recharges.

Modern laptop batteries should have built-in electrical circuits to prevent havoc from happening when the battery drains out. That is, when the charge hits a certain level, the circuit would retain it to a fair extent. Not exactly sure how long it gives you, but leaving it uncharged for say two years is not really a good idea anyway. For some reason keeping the charge at ~40% is ideal for storage.

Keep in mind that if you leave the battery in, it could discharge by a noticeable amount in a few weeks even when the laptop is off the entire time.

Also, you don't really need to bother with fully discharging/recharging. The battery meter should have been correctly calibrated in the factory in first place, unless shit happened.

Finally, what really hurts batteries is heat. Leaving the battery in while the laptop is plugged technically should not cause damage, as it won't overcharge. Except running a laptop while plugged means more power can be used, potentially generating more heat. But this mostly depends on the power options set.

Freedom Kira:
If you're using Windows, generally the rule is to display a notification when you reach 10% battery remaining, and a warning when you reach 7%. The system will auto-hibernate around 3-5%, usually 5%. This protects the battery from fully discharging, which would damage the battery if you don't recharge within a few months.

Charging has similar battery protection measures put in place. Charging your battery for 8 hours would, as mentioned a few times already, charge up your battery to full (probably 4 hours max) and then do nothing. If your laptop is on while charging, it will do the same thing and use part of the current to run the laptop. Once fully charged, the battery will just sit there and the laptop will run on AC power. The battery will be ignored until you unplug the charger.

While it is usually better to not drop the charge level below 50%, it's also generally not recommended to keep the battery in the laptop and never use it at all. I find that a battery that is always kept charged up wears down a lot faster. The heat that is produced from repeated charging will also affect the battery. If you don't intend to use your laptop on the go and just keep it plugged in on your desk, it's recommended to bring your battery's charge down to about 40% and then remove it, seal it in a plastic bag, and store it in the warmest area in your fridge (make sure it does not freeze). Your laptop should not complain about the lack of a battery.

Navigation

[0] Message Index

[#] Next page

[*] Previous page