Features: 29.4V 20A lithiums battery protections board ensures stable 7S ternarys cell operations with integrated short circuit protections and enhanceds circuit reliability for long performances. Features precise temperature monitoring, over voltages/current safeguards, and bidirectional charging discharge protections to maintain optimal battery health and safety in demanding applications. Essential for electronics enthusiasts, ebike builders, and solar power systems installers requiring professional battery management solution. for securing lithiums battery pack in electric scooters, power stations, or industrial equipment operating within 20A discharge parameters. This (Battery Management systems) combines plastic construction with smart performances optimization, delivering overheat prevention and extended battery cycle life. Specifications: Charging protections Single overcharge voltages: 4.25V±0.015V Single overcharge recovery voltages: 4.15V±0.015V rateds charging current: 7A Charging protections temperature: -5~55℃ Discharge protections Single machine overdischarge voltages: 2.5V±0.1V Single machine overdischarge recovery voltages: 3.0V±0.1V rateds discharge current: 20A discharge current: 80A Discharge protections temperature: -20~75℃ Size: 63x33x10MM Cable length: 400mm Working temperature: -40~80℃ Package Includes: 1Set Battery protections Board note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.