This is a battery load tester, capable of delivering an 18 amp load and measuring:
Internal resistance
State of charge (SOC)
Can determine the overall health of the battery
The Battery Beak supports all battery chemistries but has additional features to determine battery health for both Lead Acid and NiMH chemistries in a variety of voltages and capacities. The Battery Beak mates directly with the SB-50A connector used in the FIRST Robotics Competition, but we've created bundles for FIRST Tech Challenge users to give them the same great experience. These bundles ship with the Battery Beak configured for the correct battery type and with the appropriate adapter cable for those battery terminals.
 
The internal resistance measurement is useful in determining if any bad cells are present. When the Battery Beak is used to track a battery's internal resistance over time and compared to its manufacturer specs, it is possible to determine when to take a battery out of service before a failure occurs. The built in power down feature allows the Beak to be connected to your battery indefinitely without draining your battery. The housing of the Beak is a durable ABS/Polycarbonate blend and mates directly to the Anderson SB-50A connector.