Rynofire wrote:
225 ah Trojans. Just running 5 led lights for 4 hours, radio/amp prob 8 hrs a day and furnace at night. I'm getting the Renology 100 watt solar charging system to recharge during the day.
Your audio amp is probably consuming something like 2 or 3 amps at moderate volume. I would be more concerned about the furnace draw, motors draw a lot more power than solid state amplifiers. If you have 225 AH of usable capacity, you should be good for a couple of days without recharging. Operating with the 100W solar panel in a full day of sun, you should be golden with the devices you've listed and the run times.
At some point, it gets really obvious that a battery monitor is needed (not that set of idiot lights that are typical). Monitoring the voltage of the batteries may get you close but the monitors are much more accurate. I have a Victron and it is very capable. Trimetric is also a good solution and the combination of that monitor with their charge controller is something many Forum members have used.
Good luck with your solar charging.
