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Mac Forum / General / Portable Macs / April 2004what a difference a battery makes.
My wife has been struggling with a G3 Pismo that has had a dead battery for over a year now. has to be plugged in wherever she is. I finally plonked down the AUD$190-odd for a new one from http://www.mobilepower.com.au/ Wow - the thing ran for over 4 hours on its first charge. Its seems even better than the original Apple battery. Outdoes my Tibook thats for sure. (Imagine how long a Duo250 would run on a modern AlBook battery).  SignatureRocky Road - in Oz > My wife has been struggling with a G3 Pismo that has had a dead battery > for over a year now. has to be plugged in wherever she is. [quoted text clipped - 6 lines] > > (Imagine how long a Duo250 would run on a modern AlBook battery). Hmmmm. Apple has changed their specification for the battery for this model. My original Apple battery was 4700mAH or 4800, I cannot remember now, and the specifications now list it as 50Watt-hour. The BTI replacement battery that I ordered gave similar results to those listed above, and is the same size. Looking at the mobilpower site, it looks like the batteries that they sell are 4800mAH. The exact number doesn't really matter, though because getting that new battery was really a great feeling. > The exact number doesn't really matter, though because getting that new > battery was really a great feeling. Agreed. SignatureRocky Road - in Oz > > My wife has been struggling with a G3 Pismo that has had a dead battery > > for over a year now. has to be plugged in wherever she is. > > > > I finally plonked down the AUD$190-odd for a new one from > > http://www.mobilepower.com.au/ Which one? MC-G3/99 for PowerBook G3 (1999-2000), replacing M7318, M7385 G/A: 11.1 V, 5400 mAh > > Wow - the thing ran for over 4 hours on its first charge. Its seems even > > better than the original Apple battery. Outdoes my Tibook thats for sure. [quoted text clipped - 4 lines] > model. My original Apple battery was 4700mAH or 4800, I cannot remember > now, Probably 4800 mAh, which was listed somewhere > and the specifications now list it as 50Watt-hour. The BTI > replacement battery that I ordered gave similar results to those listed > above, and is the same size. Looking at the mobilpower site, it looks > like the batteries that they sell are 4800mAH. Maybe it's a European attitude: Please be more precise. 'Hour' / hora is abbreviated as 'h'. Unit conversion thus can be done easily. I don'w know what you actually do compare. But 4800 mAh * 11.1 V = 53280 mVAh = 53.3 Wh Kind regards Martin Sun, 25 Apr 2004 03:30:11 GMT, null@invalid.com suggested: :> My wife has been struggling with a G3 Pismo that has had a dead battery :> for over a year now. has to be plugged in wherever she is. [quoted text clipped - 16 lines] : The exact number doesn't really matter, though because getting that new : battery was really a great feeling. Well, to convert mAH to WH, you just multiply by the voltage. 4800mAH = 4.800 AH * 12v = 57.6 WH. I'm just guessing at 12v. The AC adapter for my PB G4 12" says that it outputs 24v (maybe so that it can simultaneously charge the battery and power the computer?), but 57.6 WH seems more realistic than 115, so I'm guessing that the battery is 12v. Signatureagreenbu @ nyx . net andrew michael greenburg |
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