Specifically, when a charging heater is charged, its internal heating element begins to generate heat and transfers it to the external container of the heater, causing the liquid inside the container (such as water) to heat up. Due to its portability, rechargeable heaters have a wide range of applications in various fields such as home, office, industry, and agriculture.

Rechargeable heater, due to its built-in rechargeable battery and compact design, users can easily carry the heater wherever they need it. Not only can it be used outdoors, but it can also be used in indoor environments such as offices, bedrooms, etc., providing warmth for the cold season. Modern rechargeable heaters typically have safety features such as overheat protection and tipping off to ensure the safety of users during use.