How long do batteries last?

I can get a used G3 iBook battery for like $15. He said that he used it up until about 4 months ago and that at that time it could power the laptop for 3-4 hours. For the last four months it has been sitting on the shelf.
So, could it die from sitting on the shelf for four months or should it still hold a good charge assuming that it held a good charge four months ago (3-4 hours)?
This would be a nice backup battery for really cheap.

Sometimes they do sharply fall off.
It does matter how old they are. The Washington Post reports that the typical lifespan of a lithium-ion battery is two to three years, whether it is used or not. Some may last a bit longer; some not quite as long as that.
It depends on how much the $15 means to you. It's not a big gamble compared to the price of a new one, although a replacement can be had for less than what Apple sells them for.
Assuming yours is the 12-inch model:
http://www.powergears.com/product.php?catID=1100&p=1
(Click on Laptop Batteries in the left sidebar, then Click on Apple)
http://www.computergiants.com/items/one_item.asp?part=71148&cat=99&subsubcat=115 2
http://store.apple.com/1-800-MY-APPLE/WebObjects/AppleStore?productLearnMore=M93 37G/A
http://eshop.macsales.com/item/Newer%20Technology/BAPIB111V36/
http://eshop.macsales.com/item/Newer%20Technology/BAPIB111V48/
The battery for the G4 12-inch iBook works in the 12-inch G3 Dual USB iBook, too.

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The battery life time depends on the notebook usage! So its not easy to say how long the notebook should run on battery power. But I think the 1hour 30min is a realistic period.
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Mac Medic (
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See these for more info on the battery and how to get the most battery life as well...
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I am not affiliated with Best Buy nor have I ever been employed by Best Buy. All of my thoughts and posts are of my own opinion and personal experience.
I may not always know the right answer, but I will always tell you what I do know. I also do free computer analysis and consultation via private message.
Solved!
Go to Solution.

Hello AWBrown,
I hope you are having a pleasant day so far.
That is a really great question! There really isn't a cutoff period when it comes to how long our Elite and Elite Plus members can BANK their points. As long as a member with Elite or Elite Plus status requalifies by spending $1,500 (Elite) or $3,500 (Elite Plus) on eligible Best Buy purchases within a single calendar year, they should be able to continuously BANK their points and issue certificates when they decide.
I looked over your My Best Buy™ account using the email address you registered with the forum and can see that you requalified for Elite Plus status during the 2014 calendar year, so your status will not expire until February 2016. If you were to not requalify for Elite or Elite Plus status by 12/31/2015, then your status would be downgraded in February 2016 and any banked points would be converted into certificates down to the $5 level.
If you have any additional questions or would like for me to go over your My Best Buy™ account with you in additional detail, then please do not hesitate to send me a private message and I will see what I can do to help. You can send a private message by clicking on the blue button found within my signature labeled "Private Message."
Thank you for posting to the forum and for being a My Best Buy™ member!
Derek|Social Media Specialist | Best Buy® Corporate
Private Message

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giselafromclongriffin wrote:
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about "too many attempts, try again later". Does the computer lock me from signing in even with the correct password after a certain amount of failed
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had the right password finally but it still wouldn't accept it.
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I've read 100's of posts on this and have yet to get an answer--how long should I expect my battery to last when my ipod is on, with screen on (auto lock on NEVER), doing nothing, no apps open (actually I removed all apps for this test), wifi OFF, location OFF, everything possible OFF, so just the screen on. This is ipod touch 8gb "3rd" gen, has os 4.2 but problem was same before with os 3.1. I get about 8 hours before battery dies. Is this normal? Warranty is just about up and I need to decide whether to pursue this with Apple. Thanks!

frostytheiceman wrote:
how long should I expect my battery to last when my ipod is on, with screen on (auto lock on NEVER), doing nothing, no apps open (actually I removed all apps for this test), wifi OFF, location OFF, everything possible OFF, so just the screen on.
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How long do batteries last?

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