7
Soft Charge
- When batteries suffer an over-discharge, the controller will softly ramps
the battery voltage up to 10V.
Bulk Charge
-Maximum current charging until batteries rise to Absorption level
Absorption Charge-
Constant voltage charging and battery is over 85%.
Equalization Charge*
-Only for WET battery or Calcium battery type, when the
battery is deeply drained below 10V, it will automatically run this stage to
bring the internal cells as an equal states and fully complement the loss
of capacity.(Gel, AGM,LiFePO4 and LTO battery do not run Equalization
charge)
Float Charge
-Battery is fully charged and maintained at a safe level.
A fully charged battery has a voltage of more than 13.6 Volts.
The 6 LED’s indicate the
charging status and the
battery condition
Red Red Blue Green
Blue Green
Soft charging
ON
OFF
Fast
Flash
OFF
Fast
Flash
OFF
Bulk charging
ON
OFF
ON
OFF
ON
OFF
Absorption charging
ON
OFF
ON
OFF
ON
OFF
Equalization charging
ON
OFF
Slow
Flash
OFF
Slow
Flash
OFF
Float charging
Fully charged
ON
OFF OFF
ON
OFF
ON
Solar panel weak
Flash OFF OFF
OFF
OFF
OFF
For example with BT1:
OPERATION - L.E.D. INDICATION
ABNORMAL OPERATION MODE