It should be noted that due to the need for heaters to generate a certain amount of heat, special attention should be paid to safety issues during use to avoid fire or other safety accidents. At the same time, due to the fast heating speed of the electric heater, it may cause the heating medium to deteriorate and carbonize. Therefore, careful operation is also necessary when using it to avoid damaging the equipment.

A rechargeable heater is an electric heating device characterized by a built-in rechargeable battery that can be charged through a USB charging cable or other charging methods. Its working principle is similar to traditional electric kettles or electric heaters, both of which use electrical energy to generate heat energy. However, the difference is that rechargeable heaters do not require a continuous external power supply, making them particularly practical outdoors or in environments without a stable power supply.