FAQ How do I turn on the FR250 radio? To turn on the FR250 radio, simply press the power button located on the front of the device.What type of batteries does the FR250 flashlight use? The FR250 flashlight uses rechargeable batteries that are powered by the self-charging function of the radio.Can I charge my cell phone with the FR250? Yes, the FR250 is equipped with a built-in cell phone charger that can be used to charge your mobile device.