Most power stations will allow you to use them while they are charging. However, there may be some restrictions on how much power you can draw or what types of devices you can use. For example, some power stations may only allow you to use low-powered devices such as laptops or phones. Others may have more generous limits, allowing you to use devices such as hair straighteners or gaming consoles. It is best to check the terms and conditions of your power station before using it. that way, you can be sure that you are not exceeding the limits and damaging the device.