The rechargeable battery technology of rechargeable emergency lights is one of its keys, which directly affects the performance, battery life and safety of the product.

Lithium-ion battery technology
Rechargeable emergency lights generally use lithium-ion batteries as the main battery type. Lithium-ion batteries have several advantages that make them the first choice for emergency lighting:
High energy density: Compared with other battery types, lithium-ion batteries have higher energy density and can store more electricity in a relatively small volume, allowing emergency lights to provide longer lighting in a compact design. .
Lightweight: Lithium-ion batteries are lighter than traditional lead-acid batteries, which helps reduce the overall weight of the emergency light and improves the convenience of portability and use.
No memory effect: Lithium-ion batteries are not prone to the "memory effect", which is the phenomenon that the battery capacity gradually decreases when it is not fully charged or discharged. This means users can use their emergency lights more freely without worrying about battery charging requirements.
Long life: Lithium-ion batteries have a relatively long life and are able to withstand multiple charge and discharge cycles, which helps extend the life of emergency lights.

Intelligent charge and discharge management system
In order to give full play to the performance of lithium-ion batteries and ensure safe use, rechargeable emergency lights are usually equipped with intelligent charge and discharge management systems. This system is responsible for monitoring and managing the status of the battery, including parameters such as power, temperature and voltage, to ensure:
Overcharge Protection: Prevents the battery from overcharging, which may cause battery overheating, damage, or safety hazards.
Over-discharge protection: Prevents the battery from over-discharging to avoid damaging battery performance and extending battery life.
Temperature control: In extreme temperatures, the system takes measures, such as reducing charging speed or pausing charging, to prevent the battery from overheating.
Balanced charging: For systems with multiple batteries, ensure that each battery unit is charged and discharged evenly to prevent imbalance between batteries.

Charging efficiency and fast charging technology
In order to improve the efficiency of use of rechargeable emergency lights, charging efficiency and charging speed are factors that need to be considered. Some advanced rechargeable emergency lights adopt fast charging technology, which can complete battery charging faster, allowing users to obtain sufficient power in a short time.

Security and authentication
The battery part of rechargeable emergency lights usually needs to comply with a series of international and industry standards, such as UN38.3, IEC 62133, etc., to ensure the safety and stability of the battery. These certifications and standards consider the safety performance of batteries under different conditions, including temperature range, vibration, short circuit, etc.