V7 Battery Apple Powerbook G4 12 Replaces M8984 M9324 A1022 A1079
by V7
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Category: CE
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Digital Photo Product Details
Manufacturer: V7Format: CD
Platform: Mac
Model: APL-G412V7
Color: Silver
Product features:
- REPLACES M8984 M9324 A1022 A1079
Digital Cameras Photo Reviews of V7 Battery Apple Powerbook G4 12 Replaces M8984 M9324 A1022 A1079
Customer Review: 3 stars for battery life, 5 stars for value-for-money
Summary: 4 Stars
I bought this battery over a year ago, and for the first 14 months of its life it held 90-100% of the full charge. This was good.
Then, about 160 load cycles in (about 14 months of use), the battery has been seriously fubar. It's current capacity is about 1,000 mAh of the original 4400mAh -- but the battery wrongly indicates (or is wrongly read) as having 1969mAh current capacity. This happened, suspiciously, right around the time I took the laptop on a flight -- and i noticed the battery & machine were very cold, after having been in the overhead bin (carry on luggage of course, not checked -- and still cold). This might have sped the battery's demise.
So what happens is this: the battery works fine, but when it gets to somewhere around 50% battery life (i.e. 50% of the 1969mAh), the machine does not know to go to sleep -- it thinks there's another 1,000mAh of juice, when the thing's running on fumes. Instead, the machine keeps running til the battery is completely exhausted. This is the equivalent of unplugging a machine from the wall, with no battery in. There are two annoyances: i) i have to restart the machine, ii) when i do restart, the time & date are reset to 1969, so i have to re-enter that. This gets annoying when you have to do it every week or two (as i don't have internet at home, so the network time setting won't help me).
That said the current price is about $20 less than what I paid a year ago. Li-ion batteries must be getting cheaper, at least the kind Powerbooks use. For $30, i'll replace the battery. If i get a year's use out of it, that's fine. The Apple-original batteries cost $130 in their store (similar prices elsewhere), and probably don't last more than two or three or four years. And i'll probably replace my laptop within 12 months, so this battery suits my purposes for a low-cost, stop-gap option.
Two final notes: as another reviewer said, battery calibration required for optimal battery performance (fully charge, fully discharge battery). Also, another 3d party replacement battery was panned for having a plastic cover & poor fit. While this battery has aluminum cover, the fit was a bit off. But i didn't mind, as my case is warped already & wobbles anyhow. Them's the brakes of penury.
Description of V7 Battery Apple Powerbook G4 12 Replaces M8984 M9324 A1022 A1079
V7 PowerBook Notebook Battery APL-G412V7 Laptop/Notebook BatteriesDigital Cameras & Photo Categories
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