What size solar charger to maintain batteries
What size solar charger should I get to maintain coach batteries. How many watts do I need.
Forum Discussion
Hi,
You might ask the same question about the 240 watt panels and wind.
I chose to use angle aluminum on the long sides of my existing panels to stiffen them. Then I used six screws per panel to hold them to the roof. They are strategically located behind other items on the roof so are in a wind shadow to some extent.
In your shoes I might be tempted to sell the existing system and get 3 240 watt panels with a tristar 60 amp mppt controller.
Have you done and energy audit? How big is the battery bank in amp-hours?
You might ask the same question about the 240 watt panels and wind.
I chose to use angle aluminum on the long sides of my existing panels to stiffen them. Then I used six screws per panel to hold them to the roof. They are strategically located behind other items on the roof so are in a wind shadow to some extent.
In your shoes I might be tempted to sell the existing system and get 3 240 watt panels with a tristar 60 amp mppt controller.
Have you done and energy audit? How big is the battery bank in amp-hours?
RFCN2 wrote:
pianotuna - I was adding up the approx 18 amps from my current system to the 30 amps from two 240 watt panels.
I went to the link you gave for solar panels. Are these rugged enough to put on the roof of any RV? Lotta wind up there at 70 mph with 30 mph cross wind.
