I listen sometimes. Seems like a lot of the domestic stuff is religious, extremely right wing/conspiracy theorists, or paranormal. A lot of good news from overseas in English, though. There aren't as many broadcasts directed towards North America in English anymore, but there's still plenty out there. There's even
DRM, which are digital shortwave broadcasts. You can use your computer sound card to decode them or some shortwave receivers have the capability built into them now. It's nice to see development in shortwave, though.
If you're having difficulties with reception, it's probably due to the antenna. The rod antenna that comes with these portable units is a huge compromise; compromising function over space savings. Using it like this indoors is exponentially worse. It's best, if you can, to string up a wire antenna outside. There are a million different options from a beverage antenna to a wire lying on the ground around the perimeter of your property. If an outdoor antenna isn't possible, you could build an active indoor antenna or buy one. Anything is better than the telescoping rod it comes with.
The times you listen also makes a difference, plus band conditions. Frequencies above about 13 MHz work best during daylight hours. Between 8 MHz and 13 MHz are often good all day and night. Below 8 MHz are best at night. The lower the frequency, the longer the antenna needs to be to be resonant.
Just looked at the manual for this radio. Looks like you need to look at what capacity your AA NiMH batteries are first. Take the number, let's say 2200 mAH for example. With the batteries installed, AC adapter plugged in, and the radio turned OFF, press and hold F7 for about three seconds and CHARGE 00 should display on the screen. Turn the tuning knob to dial in the first two digits of your battery's capacity. So our example you would dial in 22 for 2200 mAH. When you get the right number in there, press PAGE/TIME. Charging will be complete after the number of hours you just dialed in. Since this only charges at a rate of 100mA per hour, you might want to consider an external quick charger for your batteries
At least you can use the radio while it's charging.