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   Bernie (codewiz@mstdn.io)'s status on Sunday, 22-Dec-2024 06:23:10 JST Bernie

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   To finish the job, I ordered this little kit which adapts a "coin battery" to fit onto the pads originally occupied by the nasty Varta:
   https://www.ebay.com/itm/355497835640

   The PCB uses a MOSFET to prevent current from flowing into the non-rechargeable lithium battery when the system is powered.

   Older designs used a diode, but the ~0.6V drop across it would bring VCC too close to the lower limit for the Ricoh.

   #amiga #retrocomputing #vintagecomputing #electronics