This compact battery checker is designed for quickly checking and maintaining 2S to 6S LiPo batteries. Plug the battery's JST-XH balance lead into the unit to view the overall pack voltage and individual cell voltages on the LCD display. It can also help identify cell imbalance before charging or running a battery. Built-in balance and discharge functions allow the unit to balance cells or discharge a pack when needed. The compact size makes it easy to keep in your pit bag or RC toolbox for quick battery checks at the track or workbench.