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what a difference a battery makes.

Message #1 - Posted 2004/04/25 - RockyRoad

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).

Rocky Road - in Oz

Message #2 - Posted 2004/04/25 - John Johnson

Previously, RockyRoad wrote:

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).

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.

Message #3 - Posted 2004/04/26 - RockyRoad

The exact number doesn't really matter, though because getting that new battery was really a great feeling.

Agreed.

Rocky Road - in Oz

Message #4 - Posted 2004/04/26 - Martin Trautmann

On Sun, 25 Apr 2004 03:30:11 GMT, John Johnson wrote:

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.

(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,

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

Message #5 - Posted 2004/04/26 - andrewunix

Sun, 25 Apr 2004 03:30:11 GMT, null@invalid.com suggested:

Previously, RockyRoad wrote:

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).

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.

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.

agreenbu @ nyx . net andrew michael greenburg

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