1. Product advantages: BMS can reduce the number of strings, be compatible with other batteries, with a minimum of 4S, support extended series and improve parallel efficiency.2. Applicable batteries: 3.7V battery pack and 3.2V lithium battery pack3. Balanced type: transformer active energy transfer4. Balance logic: the whole group is balanced synchronously. After the battery is balanced, it will automatically sleep for one hour, and then re detect the voltage difference to start the next balance.5. It can be used to repair model toy batteries and can also be used in parallel with BMS long-term fixed battery pack, Because the chip setting logic is that the greater the voltage difference is, the greater the balance current is, and the long-term fixation will not cause damage to the battery.Balance efficiency: 96%Balance current: 10000maBalance differential pressure: Less than 10mVTrigger condition: adjacent differential pressure Greater than 0.05vBalance cut-off: adjacent differential pressure Less than 0.03VLow voltage protection: Less than 3VBalance period: full voltage period (including charging, discharging and idle)Sleep power consumption: 800ua low power consumption, the battery can be idle for a long timeThree adjustable balance modes:(1): When the battery voltage is lower than 3V, automatically turn off the balance and sleep.(2): active balance is always on and does not sleep16. Two adjustable balance modes:(1): When the battery voltage is lower than 3V, automatically turn off the balance and sleep.active balance is always on and does not sleep10A Active Balancer,For 3.2V 3.7V 4S-17Ssize:123x89x31mmMaterial:ABScolour:BlackPackage Contents:1 x 4S Active BalancerOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.