24 node build questions

So I'm building a 24/7/265 solae node for my home. And if it goes well I'll do it for other sites.

But I was wondering if anyone had any suggestions for solar.

I'm using a wisblok rak 19007, a 5w solar panel (it operates around 3.7 v)

And am mostly worried about battery size. I have a 10,000Mah battery. Is that over kill? Or what do uou think the smallest size battery I could get away with would be?

Any other advice for a self sustaining solar node would be appreciated.

Edit: I have two panels for two different projects and crossed them in my head. The 5 watt is 5volt. I have another panel I scavenger off od something else that's 3.7 volt