6 Feb
2016
6 Feb
'16
10:18 p.m.
On 02/06/2016 05:05 PM, Lyndon Nerenberg wrote:
Voltage? Recharging circuits? Current sinking
capacity. It's not
always a 1:1 mapping.
You're talking about RTC and perhaps a bit of static RAM maintenance.
If this RTC unit is like most of the same era, the operating voltage
range is quite wide (probably about 2-7V) and sub-1ma current draw.
Chargers for this type of application are usually very low current, so
"cooking' some AA cells is a very remote prospect. This is hardly a
power-hungry project.
If you're not interested in a "authentic" look, a plain old lithium
primary coin cell or two, with a blocking diode in this circuit should
work for years.
--Chuck