I am in the process of restoring a Powerbook 150 "on the cheap". [Yes, I
suppose I need a better hobby. :) ] The main battery is kaput, but
that's OK. This will just be a "museum piece" running on the AC adapter,
not meant for use on the road.
When I received it, the 150 would only boot intermittently. Opening it
up showed one likely reason: the PRAM battery shows some leakage and/or
corrosion around the negative (-) terminal. This battery is a Varta 2.4v
60mAh NiMH unit. I can obtain a replacement from MANY sources for a
pretty steep price, usually in the neighborhood of $27.
Good old Mouser.com <http://Mouser.com> does not carry that specific
battery, but they do have a Varta battery with Mouser part number
672-55608303012
<http://www.mouser.com/index.cfm?handler=displayproduct&lstdispproductid=413605&e_categoryid=169&e_pcodeid=67206>.
This is a 2-pin 3-cell 80 mAh NiMH battery designed for "memory
protection and Real Time Clock support". All for the more palatable
price of $5.66! The old battery was a "flat pack" with the two cells
side by side. This new one has three cells in a stack, but I am sure I
can tuck it in somewhere.
Voltage is not stated in the Mouser catalog, so I am taking a bit of a
guess and assuming that it's the same. Does this seem like a reasonable
replacement, or am I overlooking something? (Or is there an even BETTER
[cheaper/smaller] battery out there for this application?)
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