If I recall that is reasonable charge level, but with only ~200-400uA drain it could stay there for quite a while. The standby current is ~50uA @ 3.0V or ~100uA @ 5.5V for the 8Kx8 SRAMs.
From: M100 <m100-boun...@lists.bitchin100.com> on behalf of Tom Wilson <wilso...@gmail.com> Reply-To: <m...@bitchin100.com> Date: Friday, March 13, 2020 at 9:50 AM To: <m...@bitchin100.com> Subject: Re: [M100] T-102 is here! > > Yes, 4.3v sounds right for the charge voltage of a 3 cellNiCd pack. > > So now I¹m confused by why or how that circuit is holding 4.2-4.3v with no AAs > in the holder. Are there a lot of caps in that circuit? > > I have a hard time believing that a 1987 era battery is holding a charge, but > I hat the AAs out for a while with the memory switch on, and the voltage in > that circuit never dropped. > > Should I put a small load on that circuit, maybe an LED with a 200 ohm > resistor? >
