Smart Battery Checker: 260,000 color display visible under strong sunlight. Exquisite and -8S smart battery checker fully support BattGO technology. Make battery smarter: Cooperating with BattGO technology, only with XT60i connected and you can full knowledge on parameters on your batter. Easy to read cells voltage, battery circulations, working parameters and fast set to your preferred settings. Auto balancing cells voltage: Advanced auto balancing algorithm, make cell is balanced. After completion auto into low power mode. portable charging function: Connecting to your battery, -8S can become your power bank for mobile devices. Support Qualcom QC 2.0/3.0, compatible with BC1.2 and devices. Maximum output 12V/2A. Receiver signal test and protocol : With standard 3 pin plug, -8S cab detect BEC output voltage. -8S also support multiple protocol including PWM, PPM&S.BUS and etc. With firmware upgrades more Protocol will be supported. Specification: Working voltage: 5.0V-36V Input voltage: 0.8V-15V Input voltage 2-8S: 0.8V-4.8V Battery cells: 1-8S Voltage measurement accuracy: 0.005V 4.2V Balancing cells accurancy: Less than 0.005V Support USB charging: QC 2.0/3.0, BC1.2, Maximum output 12V/2A Suppport smart battery: Charging and discharging setting, read battery and usage history. Supported Batt.Type: LiHv(1-8S)/(1-8S)/LiFe(1-8S) (1-8S)/NiMH/Cd(1-10S) Display: 2.4//320x240 260,000 color IPS LCD Operating Temperature: 0-40C Working Humidity: 10%-90%RH( noncondensing ) Storage Temperature: -20-60C Storage Humidity: 5%-90%RH( noncondensing ) size: 8 x 5.5 x 1.9cm Material: plastic colour: As shown Package Contents: 1 x ttery tester(Due to different product batches, the appearance of the product may be different, the function is the same) Only 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 thing. The measurement allowed error is +/- 1-3cm.