I have an Android TV Box device that does not retain the date and time. Turns out there is not real time clock backup (RTC battery). There are 3 options to solve this.
- Capacitance battery
How effective is a capacitance battery compared to other 2 options? I am looking for something that I would not need to replace till next 3 to 4 years once installed. I have installed CR2032 in one of the other Android device that I have. It has been working fine for about 10 months now but I highly doubt it will last for 3 to 4 year though.
I am not sure how quickly would the capacitor drain if the device does not get power supply for a day or two, or will the charge last till two days for that matter.
I did a quick search but could not find a comparison anywhere.
- Which would be the best option out of the 3? Or is there any option?
- If capacitor, then what would be the specs.?
- If LIR is the way to go then do I need any other external circuit for it?