This 3-in-1 battery discharger can battery pack keeping in condition.This LCD battery discharger tester can instant voltage reading and the LCD screen is .This battery balancer is convenient to use and operate, it has 3 .This battery meter is suitable for -Polymer/-Fe battery, and allows 2 to 6 cells balancing and discharging.This battery tester can measure voltage of receiver battery and the big LCD screen can show 6 cell batteries conditionMeasurable battery type and amount:-Polymer/-Fe 2-6 Cell.(standard voltage 7.4V-25.2V using divided voltage connector)Receiver battery 1.2V-12V DC.(No battery type limit, needs external power 7.4V-25.2V, use JST connector)Balance voltage setting range.(lower limit): 2.0V-3.9V.(-setting value 3.3 V)Discharge voltage setting range.(lower limit): 3.0V-4.2V.(-setting value 3.9V)Colour:blackMaterial:plasticPackage Contents:1 x Battery BalancerOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.