I have 4-100 watt solar panels and two 12 volt marine batteries. We have had one solid week of rain and no son. Last night I turned on my lights (9 watts total) and they flickered and were dim. I figured the batteries must be getting low so I'll deal with the problem tomorrow and went to bed at 8:00 p.m. At 11:45 p.m. my inverter started beeping. The only thing I had on was a cell phone charger. I turned off my inverter and went back to bed. So my problem is now how do I charge my low batteries without blowing everything up and having no sun until next week (so the weather people say). Are there any resources on how to recharge low batteries -videos, articles-I want to do it right.
To prevent this from happening or lower risk of running out of energy is to add more batteries. What is the limit on batteries I can hook up?
I dont use a lot of things but realized the laptop charger and cell phone booster are energy suckers-Lights -only 9-15 watts on at a time for 8 hours a day=72-120 watts, Cell phone charger about 6 watts for four hours=24 watts, laptop charger 57 watts X 8 hours=456 watts, cell phone booster 24 wattsx24 hours=576 watts, and a tankless water heater-2wattsx24=48 watts idle but while in operation-117x1 hr=117=about 1,341 a day. I guess I know what are the energy suckers
So my panels can get 1,200 watts a day if I go by 3 solar hours a day (our shortest day of the year).
I have a generator that I can for back up but I need my laptop and cell phone charger and cell phone booster for work as I work from home due to COVID.
Any helpful feedback would be greatly appreciated. Thanks in advance!!