Reviews for Rechargeable Battery - 15-inch MacBook Pro

my battery has lasted a long time but the life of it is very bad apple says 7 hours of battery life when on the second lowest brightness i can sometimes get a bit more than 2 hours if I'm lucky. but seriously if they expect us to use it on no brightness than they are crazy because it is impossible to see the screen anywhere on earth.

JJ from Montgomery (calling people idiots is inappropriate when you don't know what they are doing) For 20 years I have used macs and I know how to take care of the batteries so believe me when I say these are junk. You pay this much money for a computer you would think the company is upstanding enough to make sure you can use that computer with the battery. Thus the reason for a laptop. If I wanted to be plugged into the wall all of the time I would be using my desktop!!! I would like to see the numbers on the batteries that are lasting for a long period of time against the ones that aren't! Look at the reviews and tell me who the IDIOTS are... MAC?????

A year and a half after I bought my macbook, the battery went bad. It was at 60% original capacity after 156 cycles. They replaced it for free because it had been recalled. The battery they gave me has since done the exact same thing, only it is at 44% capacity in 127 cycles.

Take home message: many of these batteries from Apples manufacturer are defective, just outside of the warranty.

I love apple products but I am on my second battery and my computer is only 3 years old. When they are new they are great but they lose life FAST.

I use my laptop extensively. extensively means around ten hours plus a day. I had bought my laptop in the summer of 2008 and it is now August 2011. My battery is still working properly. I would have to add that for the past year and a half i did what i wasnt suppose to, keep the charger plugged in when the battery was fully charged. that destroys the battery life. Normally, (during the first two years) i allowed the battery to cycle through, however, i have been getting annoyed of charging it and letting it cycle that i nearly killed my battery life. It now holds forty minutes, originally it lasted 2-4 hours on how i used my laptop (keeping the contrast low and stuff)

im debating whether to officially wait for my current battery life to die to replace it or whether to buy it now... but im a broke college student so i guess it can wait.

Battery life is very good but after around 8/9 months the battery is almost useless. Im on my second battery and this one has to be replaced.

I just purchased a new battery for my 15" macbook pro. I purchased this MacBook Pro early in the year of 2008 and now its August of 2011 and my battery just went down on me about a month ago.
EVERYONE remember charge battery to full charge day 1 and dont touch it, use the computer till it dies and then give it one more full charge. I got 3 years and so can you. GOODLUCK everyone

Take the battery off the charger when you are at full power and then let it work down to 25% power. People need to stop bad-mouthing this product because of their incompetence. If you do not let your battery cycle through it will never be able to use off the energy and the lithium ions will start not working as well, thus reducing your battery usage. I have had the same battery for 1 year and i can still get 4-5 hours usage out of it. Depending on what I'm using the computer for.

My story is almost exactly the same, as "LZ from Lansing" described: I bought MacBook Pro in Spring 2007, replaced battery in December 2010, and since last week or in 7 month since purchase it's no longer rechargeable. 144 cycles doesn't seem a big number to die. Now I'm puzzling whether it's reasonable to continue using this Mac as the maintenance costs $159+13%HST every few months for new batteries look high. Nevertheless, it would be great to hear information about improvements in reliability of this type of batteries. Even though the computer purchased in 2007, price paid at that time was almost twice more than for the current MacBook Pros. I understand that business is business, but respect to the "veterans" would be appreciated :)