VERY small scale solar lighting system
We have a small woodstove which could serve for heating and cooking in the event of power outage, but it would be nice to have electric lights for a while at night. I'm trying to design a very simple solar system, which chargs a small battery during the day that I bring in to power a 12v. light at night.
I have the following components but I have not hooked everything up yet.
One 15 w. solar panel,
One UB1250 12v, 5 ah sealed led-acid battery
One 12 v., 15 amp solar charge controller
One 12 v., 9 watt Coleman work light
My hub thinks this is a great plan, but he is math/techno phobic, so he can't help. Am I on the right track here or should I back up and start again?
Assumption 1. 5-6 hours of sunlight will be sufficient for initial battery charging (6 x 15 = 75 w)
Assumption 2 Use of the solar charge controller between the panel and the battery will protect the battery from overcharging.
Assumption 3. I do not want to discharge my battery deeper than 50% at any sitting. Therefore, I should plan on using the light only 3 hours a night.
If those assumptions are correct, I have three questions:
1.How much power loss can I expect in a 12 volt system?
2. Where can I find a 12v. socket to connect to the battery?
3. Is the sealed lead acid battery the best choice?
thank you for any help you might be able to give me!