Solar trouble

[Hoghunter]

I have an eco worthy 200w solar system from Amazon and I can’t seem to keep the batteries charged. I have 4 100w panels hooked together and should be ample amount of power to run my houseboat which never exceeds 25amps. Solar controller is putting out between 13.1 and 12.7

 

[Mattb4]

Type and age of batteries? Depending on mounting, Season, and if any shade occurs, at best you could expect about 2kWh from your panels. So how much load do you run? 25A at battery voltage of 12vDC = 300W or under 7 hours (7h X 300W=2.1kWH) per day.

2kWh is not much to work with and if you are running other equipment such as a inverter its idle current could easily take a chunk of that.

 

[MisterSandals]

Solar controller is putting out between 13.1 and 12.7

How/where are you measuring this? This is probably battery voltage.

How are you panels connected, series or parallel?

Why does a 200W system have 400W of solar panels? Will the SCC handle 400W? (400W / 14V charging = 28.6A)

 

[mikefitz]

eco worthy 200w solar system

I assume you have this kit plus extra panels. There are options for a battery and inverter, do you have these ?

200W 12V Complete Off Grid Solar Panel Kit with Inverter + Lithium | ECO-WORTHY

If efficiency, reliability and affordable are high on your wish list, ECO-WORTHY 100W 200W 300W 12V expandable Solar Kit is an ideal choice. ECO-WORTHY 100 Watt 12V Mono solar panel is backed by 25-year linear power guarantee. ECO-WORTHY LiFePO4 Lithium Iron Phosphate Battery has twice the...

www.eco-worthy.com

The controller is a PWM type so you won't get a good performance from the panels.
The most power from the 400 watts of panels, charging at 14.0 volts, in theory is 280 watts, a charge current of 20 amps. I practice you should see around 15 amps Into the battery.
The daily power from the panels will be , at most, around 1500 watts.

It's probable you need a better controller, more panels and bigger battery, to meet your load demands.