John writes: >> So for a SAT, it is a 4 cell battery pack, they call it a rechargeable >4.8V > Ni-Cd R/C battery pack. 600 mAh #23-245 and it is $19.99 Cdn. >> It is the identical size to the origional. Be sure to get the polarity >> correct. Greetings, I hate to solder! I like hide glue and leather and stuff, but I really shy away from the electronics. It was interesting to see the thread about self-replacement of the battery. Just four ni-cads? So, I did it. I went to Radio Shack and found that there were twin packs of AAA rechargables. # 23-191. I got two of them for $12.00 and took about fifteen minutes. Some thoughts to keep in mind....... The little black retainers holding the case together need the centers pushed into the unit, then the remaining part of the "rivet' pops right out. When the unit is unclipped, pull it frontwards just enough to clear the bottom casing, then lift the face-plate up and back over the bottom, it will remain connected by two flat wires. Prop it up on a block of wood or something behind the bottom case and you will have room to work. Cut the leads very close to the battery bank, leaving plenty to reattach to the new batterys. I used epoxy to glue the four batteries into a "bank" on a sheet of wax paper, then soldered the tabs together(in series). The foldout tabs don't line up, so have a little wire nearby to thread through the tab-holes and crimp over. and then a little re epoxy to attach to the bottom of the box. Make sure it is centered, clearances are tight. It works! I didn't keep it plugged in while I did this work, either. I still have all the programs too. If you go slow, this is an easy repair. Regards, Ed Foote.
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