英语翻译
Whether or not the right solar charger for you will need an internal battery will be determined by the type of devices you intend to charge and your intended use.Smaller devices,such as cell phones or digital music devices might run fine directly from the sun.However,larger devices may require a battery because of the power needed.While solar chargers without internal batteries are cheaper,one important consideration to note is that if the sun is not available when you intend to use the device,it will not work.Consequently,having an internal battery is much more convenient as the device can be run at any time,regardless of the level of sunlight.