How do I Calibrate my Pathfinder Plus Batteries?
The Pathfinder Plus uses "Lithium Ion" batteries which never need to be calibrated..
If your battery charger is working correctly, your batteries will be fully charged in 6 to 8 hours.
Once the Battery Status shows 100% or FULL, you should get 12 hours of battery life before a recharge.
Note: If you are using the Internal Tracker headpointer, you can expect to get 4 to 5 hours of life. The Tracker draws more power from the battery because it is always On.
If you have recharged your battery and the Battery Status shows 100% or FULL, but you aren't getting 12 hours of battery life (4-5 hours with the Tracker in use) once the charger is disconnected from the device, then the batteries need replaced.