premkumar9
Member
Hi,
DS1307 is a real time clock. I use it in my project. The battery for backing up during power failure is specified as 2 to 3.5 V. I used CR2025 3V lithium battery which is working fine.
Can I use 3.6V 60mAH Ni Cd battery instead as in the circuit with a zener ? What is the resistance value recommended?
DS1307 is a real time clock. I use it in my project. The battery for backing up during power failure is specified as 2 to 3.5 V. I used CR2025 3V lithium battery which is working fine.
Can I use 3.6V 60mAH Ni Cd battery instead as in the circuit with a zener ? What is the resistance value recommended?