cabarry374
macrumors newbie
Macbook Pro 17 Inch 4GB Ram 2.8 GHz 500GB HD
When I first got the Laptop, the battery life was never less than 7 hours at a full charge, even when I had my usual combination of Photoshop (Then CS4), Safari, and iTunes and had about 13800 mAh Full Charge Capacity. Without anything running, I could have the battery life be over 9 hours, once in a blue moon, 10 hours. Around the 150th Cycle it dropped sharply, all at once, and has not changed since to 12200ish mAh range and is never above 6 hours and is only there when on a full charge and not running anything beyond Finder, otherwise it is rarely above 4 and a half hours. Apple couldn't explain it and refused to replace the battery. Does anyone know what could be causing the lack of battery life? The drop in the mAh can't account for the amount of battery life lost, I've looked into it. Also, I've reset the battery a few times, and only made it worse. I don't seem to have anything running in the background that could be doing this (at most my background programs use 8% of my processor).
Battery Information:
Charge remaining (mAh): 10701
Fully charged: No
Charging: No
Full charge capacity (mAh): 12180
Health Information:
Cycle count: 303
Condition: Normal
Battery Installed: Yes
Amperage (mA): -2461
Voltage (mV): 7977
When I first got the Laptop, the battery life was never less than 7 hours at a full charge, even when I had my usual combination of Photoshop (Then CS4), Safari, and iTunes and had about 13800 mAh Full Charge Capacity. Without anything running, I could have the battery life be over 9 hours, once in a blue moon, 10 hours. Around the 150th Cycle it dropped sharply, all at once, and has not changed since to 12200ish mAh range and is never above 6 hours and is only there when on a full charge and not running anything beyond Finder, otherwise it is rarely above 4 and a half hours. Apple couldn't explain it and refused to replace the battery. Does anyone know what could be causing the lack of battery life? The drop in the mAh can't account for the amount of battery life lost, I've looked into it. Also, I've reset the battery a few times, and only made it worse. I don't seem to have anything running in the background that could be doing this (at most my background programs use 8% of my processor).
Battery Information:
Charge remaining (mAh): 10701
Fully charged: No
Charging: No
Full charge capacity (mAh): 12180
Health Information:
Cycle count: 303
Condition: Normal
Battery Installed: Yes
Amperage (mA): -2461
Voltage (mV): 7977
