Leopard killed my battery!

[dal20402]

CD MBP, 2.16 GHz, 2GB RAM, very early build.

Installed Leopard and am (mostly) loving it -- while connected to AC power.

When I unplugged, I suddenly noticed I had less than an hour of battery life.

A check in System Profiler showed my battery as having 2607 mAh full charge capacity -- before I installed Leopard, it had ~5100 mAh. This is a relatively new battery with 65 cycles on it.

The battery works fine -- no sudden shutdown or anything -- but this suddenly lower capacity is very strange. I tried an SMC reset with no effect. Next I'll try calibration. Has anyone experienced this? Causes?

 

[leekohler]

CD MBP, 2.16 GHz, 2GB RAM, very early build.

Installed Leopard and am (mostly) loving it -- while connected to AC power.

When I unplugged, I suddenly noticed I had less than an hour of battery life.

A check in System Profiler showed my battery as having 2607 mAh full charge capacity -- before I installed Leopard, it had ~5100 mAh. This is a relatively new battery with 65 cycles on it.

The battery works fine -- no sudden shutdown or anything -- but this suddenly lower capacity is very strange. I tried an SMC reset with no effect. Next I'll try calibration. Has anyone experienced this? Causes?

I had that happen with my iBook G4 as well. After about a day of use, the battery capacity went back to normal. I don't know what the cause was, I was just glad it seemd to fix itself. I've had no further issues with it.

 

[djejrejk]

CD MBP, 2.16 GHz, 2GB RAM, very early build.

Installed Leopard and am (mostly) loving it -- while connected to AC power.

When I unplugged, I suddenly noticed I had less than an hour of battery life.

A check in System Profiler showed my battery as having 2607 mAh full charge capacity -- before I installed Leopard, it had ~5100 mAh. This is a relatively new battery with 65 cycles on it.

The battery works fine -- no sudden shutdown or anything -- but this suddenly lower capacity is very strange. I tried an SMC reset with no effect. Next I'll try calibration. Has anyone experienced this? Causes?

Weird, my battery life has improved... or it seems like it has

 

[cyclingplatypus]

Weird, my battery life has improved... or it seems like it has

I agree with you...mine has improved.

 

[Warbrain]

My iBook, which has had the worst battery life for a long time, actually got better with this upgrade. It charges much better now and I get much better management.

 

[dal20402]

I had that happen with my iBook G4 as well. After about a day of use, the battery capacity went back to normal. I don't know what the cause was, I was just glad it seemd to fix itself. I've had no further issues with it.

This now appears to have happened to me.

I charged my battery fully and began to discharge as fast as possible (turn on airport, start sending data over the network, turn brightness up, and start 3 openssl speed processes). After 5 minutes, I was down to 72%. Then I noticed my battery indicator suddenly and randomly jumped to 89%. I checked in System Profiler and it now reports that my battery has a full charge capacity of 5266 mAh, which is slightly more than it was before the upgrade to Leopard. Now I hope it stays this way...

 

[gdesalvo@umail.]

Just an idea...

This now appears to have happened to me.

I charged my battery fully and began to discharge as fast as possible (turn on airport, start sending data over the network, turn brightness up, and start 3 openssl speed processes). After 5 minutes, I was down to 72%. Then I noticed my battery indicator suddenly and randomly jumped to 89%. I checked in System Profiler and it now reports that my battery has a full charge capacity of 5266 mAh, which is slightly more than it was before the upgrade to Leopard. Now I hope it stays this way...

Did anyone find it likely that while the new OS is indexing, which can take up to 4 hours, it would be using a lot of CPU power and thus be rather power inefficient? That's probably what happened as well as booting all the new apps. After a day of use all is likely back to normal and indexed which means you get your battery indexed. although this seems unlikely

 

[leekohler]

Did anyone find it likely that while the new OS is indexing, which can take up to 4 hours, it would be using a lot of CPU power and thus be rather power inefficient? That's probably what happened as well as booting all the new apps. After a day of use all is likely back to normal and indexed which means you get your battery indexed. although this seems unlikely

Hmm, could be. I never actually thought of that.