For an automotive jump starter, in addition to requiring a fireproof and impact-resistant external shell to protect the battery, it also needs an excellent BMS (Battery Management System) internally to ensure the battery's safety during operation.

The BMS establishes a multi-level safety protection system from hardware to software, capable of quickly diagnosing and isolating faults to ensure system safety.

Safety is the lifeline of the battery system, and the BMS builds a defense-in-depth system for this purpose. At the hardware level, the BMS incorporates multiple protection mechanisms such as over-voltage, under-voltage, over-current, high temperature, low temperature, and short circuit protection. Once parameters exceeding safety thresholds are detected, the BMS immediately cuts off the charge and discharge circuits, fundamentally avoiding extreme safety risks such as thermal runaway.

At the software level, the BMS possesses strong fault diagnosis capabilities. It can analyze abnormal changes in voltage, current, and temperature to determine whether issues such as relay adhesion, sensor failure, or insulation faults exist in the system. When communication interruptions or control abnormalities occur, maintenance personnel can use a series of methods such as observation, elimination, and substitution to locate and troubleshoot BMS faults. Additionally, BMS compliant with functional safety standards like ISO 26262 feature redundant design and self-diagnostic capabilities. Even if a single component fails, they can maintain basic safety functions or enter a safe state to the greatest extent possible.

This comprehensive safety protection network ensures that the automotive jump starter operates stably and reliably under various unexpected conditions. This provides greater peace of mind during use, making it an essential safety tool for long-distance travel.