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SiriusHardware · 25th Feb 2022, 4:56 pm

The original battery was a NiMH rechargeable, if you aim to use a one-shot Lithium then it can be simplified further (no trickle charge resistor needed).

25th Feb 2022, 4:56 pm	#16
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,556	Re: Genuine DS1210 NVRAM controllers The original battery was a NiMH rechargeable, if you aim to use a one-shot Lithium then it can be simplified further (no trickle charge resistor needed).