Standard header, supports series boardsIncorporates Li-po battery switching charger with path management, more stable power supplyI2C bus communication, monitoring the battery voltage, current, power, and remaining capacity in real timeMulti battery protection circuits: over charge/discharge protection, over current protection, short circuit protection, and reverse protection, more safe and stable.Onboard recharging indicator, power indicator, easy to check the battery statusFeatures At A GlanceThe -UPS-B is a dedicated UPS (Uninterruptible Power Supply) module designed for . It incorporates Li-po battery switching chargerwith power path management, and voltage/current monitoring chip, allows monitoring the battery operating status via I2C bus. What's more, themale pin header possible to "stack" other modules on top.Uninterruptible Power Supply For Keeps Your Running While Recharging, Monitoring Battery Via I2C, Stackable Design Header CompatibilityOnboard Female Pin Header For Direct Attaching To ,Male Pin Header For Stacking Other ModulesRECHARGE VOLTAGE:5VCONTROL BUS:I2CBATTERY SUPPORT:600mAh 3.7V Li-po batteryDIMENSION:62 x 21mmNote and Li-ion battery are NOT included.Colour:blueMaterial:PCBPackage Contents:1 x -UPS-B BoardOnly the above package content, other products are not included.Note: Light 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.