The Pro-Guide Battery App will give you up to the minute data to track the State of Charge, Cycle Life, Amperage Draw, and Battery Health from your mobile device with the built-in Bluetooth Connection. Know before you go Battery Data: To the minute data connected to your battery via bluetooth. Track your State of Charge, Amperage Draw, Cell Balance, and much more. Know Your Batteries Health: Be able to check your batteries state of health, and view current faults or error codes with the bluetooth connection. Know Your Charging: Have the confidence to know that your batteries are charging after a long day out on the water!