My MacBook Pro's battery has a 34% capacity of the original capacity, with a full battery only lasting 50 minutes. I have 133 load charges, is this normal for a battery that's been used this long?
That doesn't sound right at all. How long have you had the laptop?
I think Apple has a warranty thing that says if you have <300 load cycles and the battery capacity is 80% or below, you get a new battery for free. So ask them. It's their store policy.
Only if it's less than 1 year old.
My MacBook Pro's battery has a 34% capacity of the original capacity, with a full battery only lasting 50 minutes. I have 133 load charges, is this normal for a battery that's been used this long?
50 minutes on lightly used or full load?
If its on lightly used its terrible! My 1.5-year-old MacBook lasts 3.5+ hours at almost full brightness with wifi and BT on. I have 152 cycles and iStat reports the battery health to be 100% ()
On full load mine lives for about 1.5 hours.
tMac85 said:its not normal. but i account it all to the fact that you have it plugged in all the time. you should have used it on batter a bit more. for some reason the batteries like to be used, not just plugged in.
Really? How often should I leave it unplugged? Once a day?
you should probably use it once every 2 days, i try to drain my batteries as much as possible they last longer some how..
The Man said:Yes, not using your battery regularly kills your battery. I bought a new iBook battery a while ago, but because I kept the iBook plugged in all the time, the battery wasn't performing very well after 18 months, but still about 69 percent. The first battery I used extensively, and kept a good charge during 500 cycles, before going downhill.
Usually, the lower than 50 percent rule is for the first 12 months. Your standard warranty is only 12 months. But you could try to get it replaced. 34 percent is really low. It wouldn't be normal or right to get your battery replaced every 18 months because it goes to 34 percent of the capacity. You have to stress that it is really low, and that you would have accepted it if the capacity was 55-60 percent. And that you had never had problems like this before. Stuff like that. Not that it will always help, because your standard warranty is only 12 months, but you never know. When did it start going under 50 percent?
But you have a MB not a MBP ?50 minutes on lightly used or full load?
If its on lightly used its terrible! My 1.5-year-old MacBook lasts 3.5+ hours at almost full brightness with wifi and BT on. I have 152 cycles and iStat reports the battery health to be 100% ()
On full load mine lives for about 1.5 hours.
Yes, Apple is pretty clear on that:
"For proper maintenance of a lithium-based battery, its important to keep the electrons in it moving occasionally. Apple does not recommend leaving your portable plugged in all the time. An ideal use would be a commuter who uses her MacBook Pro on the train, then plugs it in at the office to charge. This keeps the battery juices flowing. If on the other hand, you use a desktop computer at work, and save a notebook for infrequent travel, Apple recommends charging and discharging its battery at least once per month."
I'm draining mine battery almost every day (once charged, I use MPB till fully discharged). Problem is, these batteries as such remain a weak point. My previous one swelled and began to bend -- no matter how regular I've drained it (nb: batteries are made by Sony, not by Apple). Luckily, Apple replaced the battery instantly: the next day I've already got the new one.
And yes, the warranty for the battery is now 2 years.
Where do they honor the 2 warranty for batteries?