In a sunny day, at noon my single solar panel can supply no more than 110W and 20-30W if cloudy.

The appliances I connected (2 PCs, 1 32" monitor, 1 network switch, 1 LED lamp, two mobile phone chargers) need between 50 (1 PC in stand-by ad the monitor off) and 120 W.

Therefore, even during the sunlight (120 > 110) the solar panel cannot charge the battery 🙁.

So I decided to buy another solar panel to get 220W when sunny and 40-60W when cloudy. I'll let you know!

Bye