i posted this reply with a 12 inch iBook and it old, so it has a 600 mhz G3 and it has new battery, mean to keep up with the 1 ghz g4. It runs for 5 hours on battery. My teacher has the 15 inch powerbook. nand it runs for 3 hours.
My TiBook is nearing the 2 year age now and it annoys me how poor the battery performance is. I can no longer rely on using the battery for a lecture because it never makes the distance.
Powerbooks are brilliant but their battery life is poor.
Somebody suggested that it's actually the OS that is probably eating the power not the hardware. Is this the case or even possible?
I tend to find that the battery life on my iBook is good, but the batteries just don't keep it going to well over the long haul. I replaced my first battery just over a year after buying the computer. My current battery is starting to lose steam after about 6 months. It used to last upwards of five hours and is now closer to three.
Sounds like there's something else going on. Do you run your book from the ac adapter all the time? What's your charge/ discharge cycle like? If you're not exaggerating it shouldn't be happening. What sort of battery did you replace the original with? Within 6 month's any difference in runtime should be negligible to the point of being imperceptible. Though true enough after a year unless your charging habits allow for proper conditioning of the battery you will notice a change, but even then I wouldn?t be inclined to buy a new battery simply because I lost a percentage of my battery life.
i run my ibook 14 933 mostly from battery. it used to get 5hrs now about 3.5 what is appropriate conditioning. i let it run till it sleeps then plug it in. is there a difference if you charge while asleep or shut down???
I tend to find that the battery life on my iBook is good, but the batteries just don't keep it going to well over the long haul. I replaced my first battery just over a year after buying the computer. My current battery is starting to lose steam after about 6 months. It used to last upwards of five hours and is now closer to three.
My G3 ibook battery died on me. I bought a new one and immediately everyone was talking about (or I just missed somehow) a software bug that impeded a full recharge of the thing and which could be easily fixed without replacing the battery. Ask around if maybe the same thing's happening to yours. I don't remember offhand what the fix was since I couldn't return my new battery and therefore never used it.
My battery charging habits are totally inconsistent. At home, I mostly run off the AC adapter. However, I'm a student and access to electricity varies by classroom at my school. So, sometimes I run the battery 20% of the way down and then plug back in. Sometimes, it's all the way. I also run all the time at max brightness and tend fo have 6 or so apps open at once.
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I really don't see a problem with keeping the iBooks with a longer battery life. As long as the performance is lower speed on iBook it sip less power.
You trade battery life for style and speed with powerbooks
Battery runs c. 1.2 hours.
Considering many 1.7Ghz Pentium M laptops manage between 4-6 hours, I think it's a disgrace.
I hope Apple can fix this soon.
Powerbooks are brilliant but their battery life is poor.
Somebody suggested that it's actually the OS that is probably eating the power not the hardware. Is this the case or even possible?
Cheers
Trevor!
Sounds like there's something else going on. Do you run your book from the ac adapter all the time? What's your charge/ discharge cycle like? If you're not exaggerating it shouldn't be happening. What sort of battery did you replace the original with? Within 6 month's any difference in runtime should be negligible to the point of being imperceptible. Though true enough after a year unless your charging habits allow for proper conditioning of the battery you will notice a change, but even then I wouldn?t be inclined to buy a new battery simply because I lost a percentage of my battery life.
Originally posted by jnrjr79
I tend to find that the battery life on my iBook is good, but the batteries just don't keep it going to well over the long haul. I replaced my first battery just over a year after buying the computer. My current battery is starting to lose steam after about 6 months. It used to last upwards of five hours and is now closer to three.
My G3 ibook battery died on me. I bought a new one and immediately everyone was talking about (or I just missed somehow) a software bug that impeded a full recharge of the thing and which could be easily fixed without replacing the battery. Ask around if maybe the same thing's happening to yours. I don't remember offhand what the fix was since I couldn't return my new battery and therefore never used it.
--B