carpenter
Full Member level 6
Hello,
I need battery for backup RTC and any register in MCU with logn life , may be 20yers.
My solution s use rechardable baeery for example **broken link removed**
and charge it from voltage source 5V - 6V
My idea is this simple CV charger
I1 is in real charged battery, Q1 CV source and reverse diode disconnecting battery when V1 is off
It's good idea?
I need battery for backup RTC and any register in MCU with logn life , may be 20yers.
My solution s use rechardable baeery for example **broken link removed**
and charge it from voltage source 5V - 6V
My idea is this simple CV charger
I1 is in real charged battery, Q1 CV source and reverse diode disconnecting battery when V1 is off
It's good idea?