I use a power bank to operate the radio, and put it in the window so the battery stays charged when it's not in use. The clock runs off the battery, so a little solar charging keeps the clock going.

The solar panel is supposed to run the radio in bright sunlight, so all you need is a window facing the sun, or go outside the house.

Is it possible to connect this radio to a larger external battery ?

Your recommendation of taking the NMh batteries out of cycle is in error. Failing to regularly cycle those batteries will turn them into a useless brick in short order.

You need better light.

did you try using rechareable aa batterys in the battery bank area? what is the battery size in the compartment next to it? did you try that?

Nice. Irei comprar um no ebay para tê-lo aquí no 🇵🇾 paraguay.

Das Shortwave Radio mit dem allerbesten FM (UKW) Band Empfang 😊 The Shortwave Radio with the sensitve best FM Band Reception 😊 A ❤ from OST-DEUTSCHLAND/ EAST-GERMANY

Why use crappy old tech batteries. I hope these Chinese radios catch up and start using 18650s or similar soon.