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 a portable electric heating device that comes with a built-in rechargeable battery, typically charged through a USB cable, dedicated charger, or other charging methods. The design of this heater allows users to enjoy a warm environment even in the absence of a stable power supply, such as during outdoor camping, travel, or power outages.