Battery decay on macbook

I just recently bought a macbook and I was just wondering when I have battery in while using AC power will this still cause any battery wear? from the heat? Because I know with my Asus notebook I take the battery out when using AC, should I do this with my macbook?

Thanks

 

not sure if the technology has solved it but i used to own a Gateway laptop which about 90% of the time was plugged in to AC power. eventually the battery began to have problems during the 10% time it was actually mobile. So my belief is that over a 3 year timespan, the battery does indeed wear out due to heat. Even if you are on AC power most of the time, power does run through the battery so it does eventually wear out over time.

 

So if I take out the battery while using AC it should be fine? Will it work? Will it damage my computer in anyway?

 

MacBook's use the battery as part of there base don't they? I would say if you are using it on battery more than 35-40% of the time, I wouldn't worry about it. I have seen it go either way.

is there a better chance that the battery will last longer over a long period if it is removed, sure, but it probably won't be extremely significant.

 

Just keep the battery in. ASUS notebooks have had battery issues for a while now, so its most likely not the battery being left inside causing the issue, but ASUS.

If the battery isn't defective, it'll last for 2-4 years, so I'll just leave it in.

 

Also keep in mind that batteries have a shelf life too... so I agree, just leave it in. The area around the battery doesn't get too warm anyway.

 

Thanks, replacement batteries cost quite a bit and I tend to use laptops till they die so I'm just looking for every possible way to extend my macbooks life

 

Just be sure NOT to use it on a bed or other surface that traps heat

 

Also, Bwen, to preserve the battery life as much as possible, when you use the battery try not to charge it up until you get it to the battery charge to <20%. That will help as well .

 

Also, since Apple seems to have some QC issues with their batteries, keep an eye on it's state. Using iStat you can monitor the health and cycles of the battery.
But you can also use system profiler to view the health of the battery. I've heard many people say that the batteries should not be below 80% of life at 300 cycles. Though many people are having it well below this before then. My MBP battery was at 20% at 315 cycles...

Just keep an eye on that. Apple should replace it for free if the battery is less than a year old and below that 20% and under 300 cycles.

 

Keep in mind that Li-ion and Li-poly (what the MB and MBP use) batteries lose capacity for two main reasons. The first is time, from the moment a battery of those types is manufactured its useful life begins to tick down. Excessive heat will also hasten this process, and for most users, a battery will typically lose more of it's capacity over time than it will from use.

My advise would be to not worry about it that much, as long as the battery isn't defective then there shouldn't be anything in normal use that will adversely and severely affect the battery's useful lifespan. Also, you don't need to remove it while plugged into AC as the majority of modern equipment will *not* overcharge a battery; removing it would also lock your CPU frequency down to low as pretty much all Core based laptops do these days which is definitely not what most users want to happen.

Just my $.02.