- Undervoltage sleep state protection: This active equalizer balancer automatically stops and enters sleep mode when the voltage falls below 3.0V. Standby power consumption is less than 0.1 mA, helping prevent deep discharge of connected packs. - Basic parameters: Uses original MOS with very low internal resistance for efficient balance current. Employs a 2 ounce thick copper board. Balancing current range is 0-5A, providing stable performance across compatible packs. - High quality construction: Built with PCB material that is high temperature resistant and flame retardant. Safe and reliable to use in typical Li battery applications. - Sleep power off mode: Includes a reserved wiring position for a sleep switch. In sleep off mode, working current is less than 0.1 mA and the compensation voltage accuracy is within 5 mV. Use scenarios: - Balancing a multi-cell lithium battery pack during charging or discharging in DIY projects, RC hobbyists, or portable energy storage systems. - Providing protection in lithium packs to prevent deep discharge by automatically entering sleep when voltage is too low. - Reducing standby drain during long-term storage or maintenance, thanks to ultra-low sleep/off current.