for those who have a pbook or ibook

I can't remember what I was searching for earlier today, but I came across this article. I found that this command was useful: ioreg -w0 -l | grep Capacity. Now, every time I fire up the terminal, I can see how close I am to having to get a new battery for my ibook. Mine has lasted two years already, and I must say it's longer that I thought it would last. (I think it has helped that I've mostly used "Better Energy Savings" mode in "Energy Saver...".)

Whenever possible, I try to compute plugged in. Now, what does this mean?

| | | "IOBatteryInfo" = ({"Capacity"=4400,"Amperage"=0,"Cycle Count"=58,"Current"=4318,"Voltage"=12429,"Flags"=1090519045,"AbsoluteMaxCapacity"=4400}) | | | | "IOBatteryInfo" = ({"Capacity"=4400,"Amperage"=0,"Cycle Count"=58,"Current"=4318,"Voltage"=12429,"Flags"=1090519045,"AbsoluteMaxCapacity"=4400})

Your battery life is great, Angelo! The "Capacity" is supposed to tell you how much charge your battery is currently able to retain, the "Current"is how much it is currently charged (from the looks of it, you're at 98%), and the "AbsoluteMaxCapacity" is how much the initial capacity was when it was shipped. My battery has really taken a beating (I used to "go wireless" a lil' too much). Just to realize how great a condition your battery is in, here's my current output:

| | | "IOBatteryInfo" = ({"Capacity"=2815,"Amperage"=0,"Cycle Count"=318,"Current"=2766,"Voltage"=12413,"Flags"=838860805,"AbsoluteMaxCapacity"=4200}) | | | | "IOBatteryInfo" = ({"Capacity"=2815,"Amperage"=0,"Cycle Count"=318,"Current"=2766,"Voltage"=12413,"Flags"=838860805,"AbsoluteMaxCapacity"=4200})

So even tho' I'm at 98%, my battery is still suckin' wind. Oh yeah, and the "Cycle Count" is the number of recharge cycles your battery has gone through. I beat ya by about 5 times in that count, but that's nothin' to be proud of. :) It's just a guess, but do you have a powerbook? Your initial capacity ("AbsoluteMaxCapacity") is a bit larger, and I seem to remember that powerbooks have longer battery life than ibooks.

Thanks, David! Yeah, Powerbook, which I must have had about 16 months now, I think.

This is a weird output I got for about a minute today:

| | | "IOBatteryInfo" = ({"Capacity"=2815,"Amperage"=0,"Cycle Count"=318,"Current"=2826,"Voltage"=12509,"Flags"=838860805,"AbsoluteMaxCapacity"=4200}) | | | | "IOBatteryInfo" = ({"Capacity"=2815,"Amperage"=0,"Cycle Count"=318,"Current"=2826,"Voltage"=12509,"Flags"=838860805,"AbsoluteMaxCapacity"=4200})

Within a minute, "Current" when down to 2815, but it just make me pause for a moment and think if there might be a way to exceed capacity. Then I read this article and decided not to mess with it. :)

When I detach my battery, here's the output: | | | "IOBatteryInfo" = ({"Capacity"=10000,"Amperage"=0,"Current"=0,"Voltage"=0,"Flags"=838860929}) | | | | "IOBatteryInfo" = ({"Capacity"=10000,"Amperage"=0,"Current"=0,"Voltage"=0,"Flags"=838860929})

Makes sense...

what os version/powerbook r u using? my daughter's 800mHz titanium, osX.4.2, has its original battery, and it's been running for about an hour on battery. the output of ioreg is: "IOBatteryInfo" = ({"Capacity"=65235,"Amperage"=18446744073709550742,"Cycle Count"=155,"Current"=63766,"Voltage"=14785,"Flags"=4,"AbsoluteMaxCapacity"=4000})

obviously f.u.:-( i've reset nvram, prom, et al, but it's still whacko...

Hi airdrummer,

I'm using 4.2 on a 900Mhz ibook. so i take it you're just curious about why the "Capacity" and "Current" are so high, and your "Flags" is so low? (Since you're running off of the battery, your "Amperage" looks about right.) Have you let your battery run down all the way until it enters into "sleep mode"? (I noticed that suggestion this, but it may be what you meant when you said "i've reset nvram, prom, et al"). I'd either try that, or even let it run down all the way to nothing (beyond "sleep mode"). I also noticed this posts by periche and Chulo here, which suggests it might just be a Ti issue. How long does your battery last, anyway? more than an hour, it seems. i'm afraid that's all i can suggest. let me know if nothing works, or if you find anything else out. :)

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