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Battery conditioning not working, anything else to try?

Message #1 - Posted 2008/04/16 - vanospam

I have a 22 month old Macbook Pro. My original battery has 55 battery loadcycles and now has a maximum of 765 mAh. That is 13% of the original 5500 mAh. 5 reconditioning attempts have changed the value from 1200 mAh down to a low of 470 mAh and now up to a whopping 765 mAh. Is there anything else I can do to get my battery back to where it should be? The battery serial number is not one of the ones Apple is replacing.

The reconditioning that I am doing is the following:

1. Get the battery to full (sic) power.
2. Run on battery only power until the system goes to sleep 3. Let the system rest for 5 or more hours before connecting to power. Typically I let it sit over night and then connect it the next morning.
4. Connect the power and let the battery charge (can use it during this time if desired).

I suspect my only prospect at this point is to get a new battery but I thought I would check first.

Thanx.

Brad

Message #2 - Posted 2008/04/16 - Tom Harrington

Previously, vanospam@cox.net wrote:

I have a 22 month old Macbook Pro. My original battery has 55 battery loadcycles and now has a maximum of 765 mAh. That is 13% of the original 5500 mAh. 5 reconditioning attempts have changed the value from 1200 mAh down to a low of 470 mAh and now up to a whopping 765 mAh. Is there anything else I can do to get my battery back to where it should be? The battery serial number is not one of the ones Apple is replacing.

Given that description, I believe they'll replace it regardless of serial number. The requirements for replacement don't mention a serial number range. See details at
<http://www.apple.com/support/macbook_macbookpro/batteryupdate/>.

Tom "Tom" Harrington
Independent Mac OS X developer since 2002
http://www.atomicbird.com/

Message #3 - Posted 2008/04/16 - nospam

Previously, <vanospam@cox.net> wrote:

I have a 22 month old Macbook Pro. My original battery has 55 battery loadcycles and now has a maximum of 765 mAh. That is 13% of the original 5500 mAh. 5 reconditioning attempts have changed the value from 1200 mAh down to a low of 470 mAh and now up to a whopping 765 mAh. Is there anything else I can do to get my battery back to where it should be? The battery serial number is not one of the ones Apple is replacing.

it's not unusual for two year old batteries to fail, and reconditioning won't help it.

do you notice it suddenly shutting down when it's not that close to drained?

Message #4 - Posted 2008/04/17 - vanospam

On Apr 16, 11:10 pm, Tom Harrington wrote:

Previously,

vanos...@cox.net wrote:

I have a 22 month oldMacbookPro. My originalbatteryhas 55battery loadcycles and now has a maximum of 765 mAh. That is 13% of the original 5500 mAh. 5 reconditioning attempts have changed the value from 1200 mAh down to a low of 470 mAh and now up to a whopping 765 mAh. Is there anything else I can do to get mybatteryback to where it should be? Thebatteryserial number is not one of the ones Apple is replacing.

Given that description, I believe they'll replace it regardless of serial number. The requirements for replacement don't mention a serial number range. See details at
<http://www.apple.com/support/macbook_macbookpro/batteryupdate/>.

--
Tom "Tom" Harrington
Independent Mac OS X developer since 2002http://www.atomicbird.com/

Tom, thanx for the pointer. Based on what that said I do believe there is hope.

Brad

Message #5 - Posted 2008/04/17 - vanospam

On Apr 16, 11:12 pm, nospam wrote:

Previously,

<vanos... wrote:

I have a 22 month oldMacbookPro. My originalbatteryhas 55battery loadcycles and now has a maximum of 765 mAh. That is 13% of the original 5500 mAh. 5 reconditioning attempts have changed the value from 1200 mAh down to a low of 470 mAh and now up to a whopping 765 mAh. Is there anything else I can do to get mybatteryback to where it should be? Thebatteryserial number is not one of the ones Apple is replacing.

it's not unusual for two year old batteries to fail, and reconditioning won't help it.

do you notice it suddenly shutting down when it's not that close to drained?

One time, yes. It was getting late, didn't want to wait long so put a DVD in. 4 mins later, it went dead. Since then I have not had the issue.

Based on what a previous poster (Tom) pointed to, I may be able to get it replaced. I'm going to see about that this weekend.

Thank you.

Brad

Message #6 - Posted 2008/04/17 - nospam

Previously, <vanospam@cox.net> wrote:

do you notice it suddenly shutting down when it's not that close to drained?

One time, yes. It was getting late, didn't want to wait long so put a DVD in. 4 mins later, it went dead. Since then I have not had the issue.

that sounds like the battery needs to be replaced.

Based on what a previous poster (Tom) pointed to, I may be able to get it replaced. I'm going to see about that this weekend.

good luck!

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