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yetanotherdave

macrumors 68000
Original poster
Apr 27, 2007
1,773
28
Bristol, England
I just replaced my iPhone 3G battery. Yes, it is possible don't believe those who say it's not, it took about 45 minutes, but I ended up opening it 3 times, first for the battery, next to sort out GPS, then to get the home button working.

I was wondering if I need to do anything to teach the iPhone that it now has a new, higher capacity battery.
After installing it it got about a 95% charge, unplugged used, (probably not ideal, I know, but LiOn batteries don't need babying like older batteries) then a full overnight charge. I am now going to let it run completely flat before giving it a full charge. Is there anything else I can do?
 
I just replaced my iPhone 3G battery. Yes, it is possible don't believe those who say it's not, it took about 45 minutes, but I ended up opening it 3 times, first for the battery, next to sort out GPS, then to get the home button working.

I was wondering if I need to do anything to teach the iPhone that it now has a new, higher capacity battery.
After installing it it got about a 95% charge, unplugged used, (probably not ideal, I know, but LiOn batteries don't need babying like older batteries) then a full overnight charge. I am now going to let it run completely flat before giving it a full charge. Is there anything else I can do?

Just operate your iPhone normally.. Once the warning "20% battery remaining", you should charge your iPhone until fully charged..
IMHO, you need to calibrate your iPhone regularly, let say once a month, in order to maintain batteries lifetime :)
 
Just operate your iPhone normally.. Once the warning "20% battery remaining", you should charge your iPhone until fully charged..
IMHO, you need to calibrate your iPhone regularly, let say once a month, in order to maintain batteries lifetime :)

That explanation is sort of misleading. Lithium ion batteries don't have a "memory" and therefore shouldn't need conditioning. However, the iPhone sometimes has trouble figuring out how much juice is left in the battery over time and a calibration can help with that.

Here's an article on the MBP's battery, but the principles are the same.

http://davidweiss.blogspot.com/2006/03/on-battery-conditioning.html
 
I just replaced my iPhone 3G battery. Yes, it is possible don't believe those who say it's not, it took about 45 minutes, but I ended up opening it 3 times, first for the battery, next to sort out GPS, then to get the home button working.

Nice job on your battery service... not to drift but...

can you go into detail about your new battery? its specs? how is it doing usage wise compared to your old one? are you seeing that big of improvement?
 
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