User`s guide

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From: Rubywand, Duncan Entwisle, Jerry Cline, Bruce Baker
007- How do I replace my GS "BatRAM battery"?
The standard GS battery is a 3.6V Lithium type rated at 1.2AH. It is called
the "BatRAM" battery because it keeps the Battery RAM and Clock IC going when
you turn OFF power. To get to the battery, you must disconnect the AC cord and
pop out the Power Supply.
If you have a ROM 03 GS, you can slip out the old battery and slip in 'one
like it'. On the ROM 01 GS, you will need a Lithium battery with leads you can
connect to cut-off leads from the old battery-- about 3/4" each for most
connection methods-- remaining on the motherboard. Be sure to mark the "+" lead
on the motherboard with white-out.
Night Owl Productions used to sell a convenient "Slide-On" Lithium battery
made by Tadiran. It came with springy ends that would slip over the cut-off
leads from the original GS battery.
Radio Shack sells a few models of 3.6V Tadiran Lithium batteries. Mostly,
these have smooth ends and are intended to fit into a holder-- for example, one
model is "AA" size. Connecting an insulated size AA holder and using a size AA
3.6V battery is one way to handle BatRAM replacement now while making future
replacements easier.
Another Radio Shack 3.6V Tadiran Lithium battery comes as a small
rectangular insulated pack with red and black wires going to a plug. From the
catalog illustration, it appears that the plug could be fitted onto the cut- off
leads if these were long enough to be shaped to match the plug's connectors. (If
you decide to have long cut-off leads, it's a good idea to slip heat-shrinkable
tubing over the leads to insulate them for most of their length.)
It may be that your best bet for getting a good BatRAM replacement battery
is All Electronics (800-826-5432; http://www.allcorp.com ). Their catalogs
often list 3.6V lithium batteries with and without wire leads in various sizes
at low prices.
If you like, you can always solder, crimp, etc. insulated leads going to
some plug or socket which matches the connector of a particular battery you'd
like to use. Whatever, make sure that the new battery's "+" lead connects to the
"+" lead on the motherboard.
For connecting solid wire bare leads, you can use the spring connectors
from a Radio Shack electronics experimenter kit or just wrap the new battery's
leads around a large sewing needle to make them springy. The springy leads can
then be slipped over the cut off leads on the motherboard. Another non-
soldering approach is to use "wire nuts".
Should you do any soldering to the cut-off leads, use good quality rosin
core solder (e.g 63 Tin multi-core) and try to avoid long heat exposure. You do
not want to melt the connection at the motherboard. Similar concerns apply to
soldering to the new battery leads. With good solder and clean leads it should
be possible to "tin" each lead and make the connections in a few seconds for
each operation.