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Powerbook battery cycle count

hcuar

hcuar

macrumors 65816
Original poster
Jul 23, 2004
1,065
0
Dallas
I was just looking at the battery info for my PB which is about 1.5 years old... It says that my cycle count is 59. I was wondering how many cycles the average battery will do with a resonable charge time? My absolute max capacity is 4400.

I found the information with the following command:

ioreg -l -w 0 | grep IOBatteryInfo
 
well, that command says mines done 139 cycles, and the max capacity is 4400

I'm getting 3-4 hours from a full charge, eg. light goes green.


So there should be lots more cycles left in yours :cool:
 
Tiger has that information in System Profiler for those who think Terminal may bite. I've done 204 cycles on a battery that's about 1.5 years old FWIW. :)
 
My count is 1004... No typos there. My iBook's about 2 years old, as I got it for X-Mas two years ago. The current capacity is 996 out of an original 4400, and it only lasts about 50 minutes on a full charge. I bought a new battery from Apple last week, should be here Monday or Tuesday!! :D
 
Should I let the cycle count be the deciding factor?

hcuar said:
It says that my cycle count is 59. I was wondering how many cycles the average battery will do with a resonable charge time?
Click to expand...
I've got a new battery (two weeks) and it's cycle is 2.

I just starting looking for this because I was trying to decide which of my old batteries were better to carry around for a spare. Should I let the cycle count be the deciding factor?

One is at 372 and one at 204. The 372 is the one that I believe is the older one. So it's kind of a no brainer to keep to 204 on hand, right? (They're also 3567 and 3677 respectively for their capacity a lot closer than the cycles).

Or should I factor in other "stuff"?

Thanks,
Gary
 
The cycles is usually a very good indication of how the battery will perform. However, that command and system profiler give you even better information than the cycles. The capacity tells you how much power it has at a full charge. The higher the number the longer the battery will last no matter how you look at it.

Mine is 182 cycles, 22 months old, 4075 mAh max capacity.
 
My powerbook is a year old now.

216 cycles and now my battery is 4171 max out of an original 4400

getting about 3 hours.

(rev d 12")
 
My results

Here are my results: Thought I would post them. this is a 5 year old TiBook with original battery... it lasts about a minute when unplugged. I don't have that many cycles, as it stayed plugged in a lot.
When plugged in:
Geoffs-Computer:~ geoff$ ioreg -l -w 0 | grep IOBatteryInfo
| | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=0,"Cycle Count"=416,"Current"=258,"Voltage"=16212,"Flags"=838860805,"AbsoluteMaxCapacity"=3600})
| | | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=0,"Cycle Count"=416,"Current"=258,"Voltage"=16212,"Flags"=838860805,"AbsoluteMaxCapacity"=3600})

When running on battery:
Geoffs-Computer:~ geoff$ ioreg -l -w 0 | grep IOBatteryInfo
| | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=0,"Cycle Count"=416,"Current"=258,"Voltage"=15345,"Flags"=4,"AbsoluteMaxCapacity"=3600})
| | | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=18446744073709551399,"Cycle Count"=416,"Current"=258,"Voltage"=15345,"Flags"=4,"AbsoluteMaxCapacity"=3600})

Any ideas why the amp count is so high on the last one?
Geoff
 
Cycle Count=406 with my NewerTech battery from OWC. Still running longer than the Apple battery when it was new. Best purchase I've ever made.
 
high amperage

Not sure if anyone watches this forum anymore but iowamensan: did you ever figure out why your amperage is so high? My ~2003 17" Powerbook also has 17-digit amp counts while on battery and lasts about a minute. It's not my primary computer anymore (phew!), so just curious!
 
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