|
|
|
|
| Welcome, Guest | Home | Search | Login | Register | |
| Author | PowerBook 3400c Battery Li-Ion or NiMH? (Read 33675 times) | ||||||||||||||||||||||||||||||
|
lostprocess
16 MB  Posts: 26 
|
on: June 16, 2006, 21:29
I fired up BatteryAmnesia on my 3400c and got an alert which read "This model of computer uses a Lithium-Ion battery, which is not susceptible to the memory effect. Running BatteryAmnesia won't harm it, but it doesn't provide any benefit either." I checked the battery, and it is a "PowerBook Rechargeable Battery" marked NiMH (with a copyright 1995 Apple Computer, Inc toward the bottom of the sticker), but everymac.com and MacTracker both report the battery should be a 32Wh Li-Ion. The battery I have fits the machine just fine, and it works, but the machine has behaved oddly when on battery ever since I bought it a few weeks ago. Do I definitely have the wrong battery? Should my machine long since have exploded? What's going on? |
||||||||||||||||||||||||||||||
|
lostprocess
|
16 MB Posts: 26
Reply #1 on: June 16, 2006, 21:39
|
I want to add that by "fits the machine just fine" I mean that there is no physical indication that it is not the proper battery for the machine, not that it merely fits the hole.
|
bd1308
|
128 MB Posts: 198 
Reply #2 on: June 17, 2006, 03:24
|
It's Li-Ion .... a Ni-MH battery would have violently committed suicide by now on the 3400c. I would file that under "misprint" and continue. it is a Li-Ion battery. If it isn't you need to stop using that battery immediately. b
|
dpaanlka
|
1024 MB Posts: 1646
Reply #3 on: June 17, 2006, 05:32
|
It sounds like you have a PowerBook 190 or 5300 battery. They work in 3400s but don't charge or something like that. A far cry from commiting suicide.
|
bd1308
|
128 MB Posts: 198
Reply #4 on: June 17, 2006, 14:02
|
There's a difference in the charging profile between Lithium Ion batteries and Nickel Metal Hydride batteries, IE they charge in VERY different ways. Maybe suicide was a bit exaggerated, but PLEASE get a Li-Ion battery in there, i *CAN* without a doubt tell you that the battery could overheat if being charged wrong, causing all sorts of problems possibly. Or the laptop is smart enough to notice the foreign battery and prevent the PMU from charging it (more likely scenerio) b
|
dpaanlka
|
1024 MB Posts: 1646
Reply #5 on: June 17, 2006, 17:18
|
Yes... but Apple already thought ahead and realized that people may try to stick their PowerBook 5300 batteries into identical 3400c battery bays. http://docs.info.apple.com/article.html?artnum=24361
|
lostprocess
|
16 MB Posts: 26
Reply #6 on: June 19, 2006, 18:58
|
I'm no longer using the battery but I can confirm that it did charge under 7 although the system was pretty lousy about reporting its charge accurately. The machine was flaky on battery, and it would sometimes power off and not recognize the battery when attempting to power it back on. When it did work, battery life was pretty good, it usually went into 'low power' mode within a few minutes off the charger, but after that it was good for about an hour and a half. I swapped a bunch of parts with a broken 3400c last night and that included a Li-Ion battery (which is pretty dead, but I took it anyway) so I suppose that's the battery I'll leave in the machine until I can find some that actually work (for cheap).
|
AlphaKilo470
| Guest
Reply #7 on: June 21, 2006, 02:31
|
FWIW, I just recieved a PowerBook G3 (Kanga) today which, from my understanding, is very similar to the PowerBook 3400c and the battery that came with it reads NiMH and (c) 1995 Apple and it runs just fine. I have no problems charging the battery and it keeps it's charge for about an hour or so. The only thing I have noticed so far is that the battery time indicator in my control strip doesn't work with this battery but that's the only issue and it's not even a big one at that.
|
|
Pages: [1]
|
| ||||||||
|
© 2021 System7Today.com. |
