Charge Controller FOX-260 Li

Additional features:
The specifically for LiFe(Y)PO4 types developed charge characteristic curves gets the maximum energy from your solar panels to save energy as fully as possible in the battery.

However, this battery type requires that before using the regulator the specific parameters provided from your battery manufacturer are set using the menu in the controller.

The FOX-260 Li is a solar charge controller for currents up to 20 A, suitable for one LiFe(Y)PO4 battery.

Loading Phases of LiFe(Y)PO4 Battery

• SoftStart
  A deeply discharged battery should not be charged directly with a high charging current below a voltage of ~ 10.0V. Therefore, the controller limits this voltage range below the charging current to about 2A.
   
• Quick Charge:
  In the rapid charging phase, with the entire available stationary solar charging current (recommended max. ~ 0.3C) until reaching the rapid charging voltage (~ 14,6V). In view of the discontinuous solar charging currents, the fast-charging voltage can not be achieved under certain circumstances for days or weeks. The charge for an unlimited time is not recommended, therefore, this loading phase is also guaranteed by the additional timing after a preset "maximum fast charge time" activates the next charging stage.
  Upon reaching the fast charge voltage the battery is charged already to about 80%.
   
• Full Charge:
  In the subsequent full-charge phase, the full charge voltage (= fast charge voltage) is kept constant by an adjustable lower charging current (~ 0,01C) is exceeded with sufficient solar charging power. This loading phase brings the remaining 20% of a full charge into the battery. The time to reach the 100% full charge is approximately twice as large as the charging voltage to reach the required speed. To prevent continously charging of the battery an adjustable full-charge timeout could be set.
   
• Disconnect:
  A permanent trickle charge as of the known lead-battery is not permitted. Therefore, in the final charging phase the charging current is switched off completely.
  The restart of the entire charging cycle takes place once the voltage was below 13.6V @12V or at least every two months charging phase.