How to wire a rechargeable car battery to drive approx 70 LEDs for porch lighting (60 feet)

I need to put lighting into my porch and have decided LEDs would be the best idea as I don't want to put instd. AC. Further, I would like to power these from a std 12V car battery which would be recharged via solar (see: https://www.instructables.com/id/Green-Solar-Powered-Water-Barrel/). This seems like a very doable thing and there are a lot of knowledgeable folks here - can anyone give me some tips on the key considerations?

gmxx7 years ago

use this led calculator
although, i would still want to use wall power, you are going to need some big solorpanels... ive tried recharging a 12v/20a battery with solar charges, it gets very little charge on it, at least when you use one of those dinky portable car solor panel things
lemonie7 years ago
That's not a very good Instructable, in that it doesn't really show how the thing was built or say much about the charger.
See other comment and search for similar

dsdurkes (author)  lemonie7 years ago
Well, I asked a question and haven't posted an instructable yet. I'm not sure this is the way to go but want to learn and do something solar!

Thanks anyway!