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Most Helpful Customer Reviews
73 of 77 people found the following review helpful:
2.0 out of 5 stars
Not quite what I hoped for,
By
Amazon Verified Purchase(What's this?)
This review is from: TruePower Laptop Battery for MacBook Pro 15-inch NEW (Electronics)
When I first plugged in the battery, the system profiler said it had 6200 mAH which was what I had expected as it's supposed to be an extended capacity battery. Naturally, I followed Apple's calibration guidelines, charged it up and kept it charged for two hours, then drained it down, keeping it down for five hours and then charge it back up again. Well, when the MacBook Pro is on this battery's power, it discharges at a rate between 4,000 and 5,000 mA while when it's on the original battery, it discharged at a rate of approximately 3,000 mA so this battery discharges much faster than expected. Also when the original battery is depleted, there's enough reserve power for the MacBook to enter deep sleep mode where it's state is saved onto the hard drive so that when I swap out the battery or get it onto wall power, it will come back up to the same state it was in when it went down but with this battery, it just dies without a chance to enter deep sleep mode. Also after the Apple calibration procedure, it no longer had 6200 mAH, rather it had 5988 mAH. OK, the Apple procedure is not the most thorough calibration procedure so for the next charge, I placed it on a commercial Lithium Ion battery conditioner designed for the MacBook Pro, now it has a maximum capacity of 5688 mAH. If it continues to loose capacity at this rate, it won't last more than a few months.
23 of 23 people found the following review helpful:
1.0 out of 5 stars
MacBook Battery,
By Dave "bulldog" (Poughkeepsie, NY USA) - See all my reviews
Amazon Verified Purchase(What's this?)
This review is from: TruePower Laptop Battery for MacBook Pro 15-inch NEW (Electronics)
This battery is built cheaply. The cover plate is coming apart and I can see the internal batteries through the opening. I figure I have to use some superglue to hold it together.Update: 12/14/08 It also does not last very long. 3 months later and it is It is already DOA. Had to buy a genuine Apple battery to replace it already.
27 of 31 people found the following review helpful:
5.0 out of 5 stars
Excellent!!,
By
This review is from: TruePower Laptop Battery for MacBook Pro 15-inch NEW (Electronics)
PROS:-5% longer battery life -33% cheaper than standard Apple battery -Remains flush with laptop -Still shows charge amount -Perfect fit -1 year warranty -Great to have a spare -No Sony cells CONS: -Not set up for future 2.33GHz or Core 2 Duo -Still heats up (not any more than already)* *There is a program you can download to control fan speed in the MacBook Pro. Standard fans run at 1000RPM; this program allows you to increase that 6000RPM. Although louder, your MacBook will remain as cool as if turned off! 3000RPM is a good balance of sound and temperature.
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