Features: 20A discharging current, separated charging connector and discharging connector, simple to use. Balance function ensures each battery cell being fully charged at the same for time. Help prolong the service life of your battery pack,you deserve it. Multiple protective functions including overdischarge for protection,overcharge for protection and short circuit for protection. brand new and high quality Designed for 10 cell Li-ion batteries, professional and durable. Specifications: Maximal Continuous Discharging Current :20A for Peak Discharging Current:100±20A Over Current for Protection Current:100±20A Over Charger Release Voltage:4.15±0.05V Detection Delay Time:230-500uS Charging Voltage:42V Charging Current:5A Package Includes: 1 x BMS for Protection Board. note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!