Is it okay to keep your Laptop charged all the time?

Hey guys I have a quick question,

I usually keep my laptop on my desk at home so I keep the charger plugged in at all times. Will that decrease the overall life of the battery?

Do you guys only charge it when the batteries about 10 or 15%?

Thanks!

 

This isn't as big of an issue with lithium-ion batteries as it is with the old nickel cadmium batteries, but I do believe it will shorten the lifespan of the battery. I think Macs have a feature built in to where they let the battery drain down to about 93% or so before they recharge to help minimize this. I keep my laptop plugged in most of the time as well, and I've noticed very little battery degradation in the last year.

 

If you're going to be using ac power for long periods of time, then yes, remove the battery and store at around 40% charge. The heat generated from the laptop generally decreases the life cycle of the battery.
Lithium Ion batteries have a typical life cycle of around 300-500 charges, so generally after about a year of use, your battery will be at around 80% capacity (ie it has lost 20% of its original capacity).
If the battery is continually exposed to high temperatures (say 60C) the battery life decreases further.

 

I have a three year old 12" PB which, until about six months ago, nearly always ran on AC. Only recently (the last 2-3 months) has battery life really begun to decline. I don't know if a person can really expect a laptop battery to last much longer than three years. LOL

 

i kept mine plug in nearly all the time (i rarely moves). it won't affect the live of the battery really much. as the effect of oxidation that occur continuosly will always happen, so its either the time ran out, or u used them too much (and i mean too much!). li-ion and any other rechargeable battery likes to be used every now and then (about once a week).

and does it really matter, apple's laptop battery are so easy to find and readily available at ur local apple store or online store.