Z battery will be scrapped soon?

After how many times recharging z battery will be completely scrapped?

since everybody knows the battery of z has drian problem, so I think it will be downgrading sooner than a normal battery.

now, I simply pull the battery out when I use z at home powered by AC adapter.

is there any better ways to prevent the probably faster downgrading?

 

It will last you at least one year. If not (but I doubt it!) you will get a free replacement from Sony, since the whole laptop has 1 year warranty. Later on, after the warranty expires, you can easily but a new battery. It's ok, don't worry, be happy with your laptop, it great. I don't ever pull the battery out from my Z. I just use it and went it will go out I will buy another battery. It's not that big deal, I am sure all here that got a Z will have the money to buy a spare battery in a year from now on. Yes it's a shame what Sony did about the draining problem, but that will not make me stop using my laptop without all the worries in the world.
Relax, after about 2-3 months your love for the Z will decrease and at the same you will stop caring that much about it. It will just be a nice laptop, not an idol anymore

 

-The best way to preserve your battery (for any laptop) is to always take it out when you're using it on AC. Charge it to 40%, put it in a plastic bag and store it a 5C in the fridge (make sure it's not freezing). Make sure to use it at least once every 1 or 2 months.

-Avoid completely draining the battery too often. Best to start charging at 20%.

Guidelines for prolonging Li-ion battery life
http://en.wikipedia.org/wiki/Lithium-ion_battery#Guidelines_for_prolonging_Li-ion_battery_life

 

Really, in the fridge? Haha, that so neat. And looks true at the same time
Honestly, I am just too lazy to do that, I would rather let it die than go downstairs to keep my battery cool. Besides, people might forget it there some days before work, I know I would ..

 

I have bookmarked this thread lol.

 

Why not just try putting the laptop in standby or sleep rather than switching it off. The battery drain issue was only identified to be an issue at all for shutdowns. Has anyone tried just leaving the laptop in standby or sleep?

 

Standby takes some power (on any laptop) and hibernating also drains the battery on the Z.

 

As much or more than the battery drain in the Z when it's completely off?

What I'm saying is that sleep or standby may not be complete fixes, but is there any chance they're actually BETTER options that a complete shutdown?

 

Haven't tested it, but I'd be very surprised if the drain is less in standby than when powered off.

 

thanks

you mean using the battery care function sets the 20% charging?

 

I meant plug it in before it reaches 20%, in general.

I don't own a Z at the moment and I'm not familiar with the battery care function.

 

Battery care limits what your laptop will charge the battery to when plugged in.

Basically, for users who always have their batteries in, and then plugged into AC adapters as well, it's a known fact that this damages the battery when fully charged and connected to the AC adapter. Basically, with Battery Care, your battery will only charge up to whatever percentage you set it at, and no further. Thus minimizing the damage as a result of "overcharging" your battery, IIRC.

 

I dont think laptop warranty applies to battery and power adaptor too. This are other parts and not a part of a laptop.

If you buy a radio clock, do you think its warranty also appy to batteries that are included?

 

so, you mean if I use the battery care function to set the % charge to a low lever, eg, 10%, that can prevent the battery from damage.
whether that also mean, if my z is powered by the battery, the battery usage time is also decreased to 10% of original usage time it should be?

so, I just set the % charging at as low level as possible when I am at home, I do not need to care how long the z can be powered by the battery, so I can frequently plug in/out the AC adapter and do not need to pull out the battery anymore, that will has much lower possibility damaging the battery, right?

When I want to use z outside, simply disable the batter care functiion, and full charge the batter before going out. is it the best way to treat the battery, am i right?

thanks

 

Uh... yea... that sounds right.

I guess I'll test the sleep/standby battery usage tonight. I know I have the standard bettery drain issue everyone else has (8% ish overnight) so I'll just compare how my battery does in sleep/standby compared to that. Get back to you all tomorrow.

 

I just find the battery care function can only be set at either 80% or 50%, even i choose the Custom Setting, I can only find 3 options, 100%, Approx. 80% and Approx. 50%.

so, is the 50% already a limit?

 

he meant start charging.

Battery Care tells the computer when to stop charging.

Also - Phil - where are you gettnig the 40% figure? I thought the "storage state" is ideally 70%?

 

I though the "storage state" is EMPTY. Because battery disscharge itself.

 

Storage state is roughly 40%.

Think of the rate of decay as a parabolic curve, the lowest point is at 40% and get gets worse as you go either way.

That said.... it's probably better to store at zero than at 100%.

Results of sleep test:
Approximately at 82% battery capacity when put to Sleep mode.

Woke up 7 hrs later, powered it back on. After recalculating, the battery seems to have held at 78% or so. So I think there was less drain. Though, I'll give it another try again tonight I guess... or I'll just sleep it through work and get back to you all tonight. XD

 

Most sources I've read say 40%, like here:
http://en.wikipedia.org/wiki/Lithium-ion_battery#Guidelines_for_prolonging_Li-ion_battery_life

 

thanks guys!

You're right - I had a little time and was searching for where i got the 70% - I must have just been mistaken.