Half-AA Battery Holder
Description
One of my Apple IIGSes needed a new battery. (I think it's been through at least two over the past 30+ years.) It's a ROM 01, which means the original battery had a couple wires sticking out the ends that were soldered to the motherboard. A previous replacement involved clipping the original out and replacing it with a battery with coiled wiring that would slip over the stubs still attached to the motherboard. I decided to go with the approach Apple took with the ROM 3 IIGS: a half-AA battery holder to allow easy replacement when needed. (Also, half-AA 3.6V lithium batteries are still readily available in 2019...picked one up at Fry's over the weekend. The original, hard-wired type? Not so much.) The source thing didn't include a half-AA holder, so I took the code for the AA holder and modified it: ``` module flexbatterHalfAA(n=1){ flexbatter(n=n,l=26.1,d=14.4,hf=0.80,shd=2.5,el=0.5,eps=0.28); } ``` It took two tries to get the length right and to dial in the spring parameters so it'd have the right amount of give. A bit of 26-ga. solid wire and some hot glue, and it's good to go.
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