Solar panel for field

[Sossigpoker]

Help a girl out please!
I've got a 125ah battery, Gemini120 energiser (230v / 2.4J output). What size solar panel do I need to keep the battery charged up in the field?

I can offer much gratitude in return if someone actually knows since I certainly don't!

 

[starbucker]

What are you trying to power?

To keep your 125Ah battery charged running a Gemini 120 energiser, you might use:
- Solar panel size: 80–100W (monocrystalline preferred for better efficiency) (700 x 670 mm - 1000 x 670 mm )
- Solar charge controller (PWM for simplicity, MPPT for better efficiency)-
This setup gives headroom for poor sunlight and battery health degradation over time. This is just to keep it fully charged and does not account for any appliances

 

[Lucky Snowball]

It depends how sunny it is! To work in winter, I use 30w which is more than enough, it charges a light as well.

 

[Sossigpoker]

What are you trying to power?

To keep your 125Ah battery charged running a Gemini 120 energiser, you might use:
- Solar panel size: 80–100W (monocrystalline preferred for better efficiency) (700 x 670 mm - 1000 x 670 mm )
- Solar charge controller (PWM for simplicity, MPPT for better efficiency)-
This setup gives headroom for poor sunlight and battery health degradation over time. This is just to keep it fully charged and does not account for any appliances

Oh yes might have been helpful to say: just powering electric fence. Wanted to extend the time between charging by using a solar panel.
From what I can see , a 100w panel isn't going to be cheap unfortunately!

 

[Sossigpoker]

It depends how sunny it is! To work in winter, I use 30w which is more than enough, it charges a light as well.

It charges a battery and energiser of the sizes I have? That would be surprising.