how to adjust battery recharging start percent

how to adjust battery recharging start percent?
I want to adjust battery start rechanging at 20% left?
does lg laptop support it?
btw, my computer is LG LE50.

 

Hi
your question is quite strange.
firstly your notebook is going to start recharging the battery(irrespective of what percentage it is) immediately when u connect the AC power(using the power supply).
so i don't tink u can recharge ur battery when it is at 20%.

this is because, when the computer realizes that there is another power source(the AC power) connected to ur notebook, it immediately switches to the AC power for it's power source and and no longer use the battery as it's power source and starts recharging the battery.

and why would u want to use your battery power when u have ur AC power connected?

here is a useful link(although its not an LG laptop, u can apply these suggestions to ur battery power saving methods):

http://support.gateway.com/support/manlib/Notebooks/Solo3350/8507027/07027c7.htm

hope this helps
cheers

 

First at all,thanks for your reply.
English is not my mother language, so I can not express my means accurately and fluently.
What I want is minimize my battery recharge times and maximize its lifes.
So, in my poor opinion, can I reduce battery recharge start point to avoid frequently recharging.
when AC is connected, can the laptop use AC source instead of battery, but not recharge the battery.

 

Hi

Don't worry about the language thing... i understand.
The batteries that are used nowadays are mostly Lithium-Ion. The reason why Lithium(Li) is used, instead of lead or nickel based products,is that it has a much better charge/discharge rates than lead or nickel. it also has better power deliver, but there is still alot of work going in this field to improve it's overall performance.

Lithium ion batteries last long when it is partially discharged and you should try to avoid frequent full discharges. What you should do is rather charge the battery more often.

You don't have to worry about if your battery only has 50% left, you can still charge it because the battery doesn't have (what we call) "battery memory". another important issue is that if ur battery is old, don't ignore it because lithium ion batteries undergo redox reactions quite often and thus, that is y normally these batteries only last for about 2.5 years and then u will have to replace it.


how quickly these batteries age is due to temperature... the lower the temperature of ur laptop the longer ur battery lasts and it will age less quicker and i must advice u, once ur battery has been damaged or has reached it's life time... THERE IS NO WAY TO RESTORE IT!

my one friend, who deals with battery repairs, says the best practice to perform on batteries is to keep them in a cool place and they must atleast be 50% charged. u will be tinking, y do i need it to be 50% charged... this is to keep the internal battery circuit is operational while it is kept outside the laptop.


here is more advice...
<quote>
The worst condition is keeping a fully charged battery at elevated temperatures, which is the case with running laptop batteries. If used on main power, the battery inside a laptop will only last for 12-18 months. I must hasten to explain that the pack does not die suddenly but begins with reduced run-times.

Avoid keeping the battery at full charge and high temperature. This is the case when placing a cell phone or spare battery in a hot car. Running a laptop computer on the mains has a similar temperature problem. While the battery is kept fully charged, the inside temperature during operation rises to 45°C (113°F).

Removing the battery from the laptop when running on fixed power protects the battery from heat but some battery and laptop manufacturers caution against this practice. They say that dust and moisture accumulating inside the battery casing could damage the laptop. There is little evidence of this occurring in an office environment.

The question is often asked, should the laptop be disconnected from the main when not in use? With lithium-ion it does not matter. Once the battery is fully charged, no further charge is applied.

Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.

Batteries with fuel gauge (laptops) should be calibrated by applying a deliberate full discharge once every 30 charges. Running the pack down in the equipment does this. If ignored, the fuel gauge will become increasingly less accurate and in some cases cut off the device prematurely.

Keep the lithium-ion battery cool. Avoid a hot car. For prolonged storage.
Consider removing the battery from a laptop when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)

Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.

If you have a spare lithium-ion battery, use one to the fullest and keep the other cool by placing it in the refrigerator. Do not freeze the battery. For best results, store the battery at 40% state-of-charge.
----- Isidor Buchmann -----
<unquote>

glad to help
cheers

 

thanks for suggestion

 

Wtf - are you serious? Everyone else has always told me that lithium ion batteries should frequently be discharged completely to keep them at their best!

Can anyone shed some light on this??

 

Hi

if u want to frequently discharge it... then be my guest... and u wil probably be lookin 4 a new battery

i hav been wrkn wit laptops(LG mainly) and i hav had no problems wat so eva wit my battery(other than d fact it is slightly heavy) by using these battery power saving techniques.

cheers

 

here is more proof:
<quote>
Manufacturers rate the lithium-ion battery at an 80% depth of discharge. Repeated full (100%) discharges would lower the specified cycle count. It is therefore recommended to charge lithium-ion more often rather than letting it discharge down too low. Periodic full discharges are not needed because lithium-ion is not affected by memory...

...Lithium and lead-based batteries do not require a periodic full discharge. In fact, it is better not to discharge them too deeply but charge them more often. Using a larger battery is one way to reduce the stress on a battery.

<unqoute from http://www.li-ion.net/Discharge_methods.htm>