NiceGear does sell an uninterruptilble power supply hat for the Pi.

The problem with that UPS is its $50, 300mah, and supplies 15minutes of power. I want to run a pi on solar power 24/7. Iv run the pi3, idle, on my 20.000mAh for about two days; which means ill probably need a 10,000mAh battery. I say about two days because i did not run the battery flat, just down to one bar. I can't use the pack I have without re-wiring it because i need to press a physical button to switch it on and it won't supply power while its charging. Do you think a realtime clock would be necessary considering i can get time off a server? I'm also considering repurposing my old phone because it already has a battery, but it doesn't have much ram and is also running a very old unsupported android. -- Kind Regards Rowan Schischka +64226719711