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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 

Summary of Contents for ZS-30AD

Page 1: ...1 Dual Battery Solar Controller Nominal Voltage 12Volts Rated Solar Current 30Amps Model Number ZS 30AD User s Manual...

Page 2: ...g under charged in the solar energy field battery undercharge always occurs especially on some Conventional lead acid or Calcium batteries The unit provides an automatic Equalization feature for deepl...

Page 3: ...he installation This will ensure that no damage is caused to the Solar Panel or Battery if the wires are accidentally short circuited Always install a battery fuse on each circuit including the solar...

Page 4: ...solar controller BT1 to the Positive polarity of Battery BT1 Connect the solar controller BT2 to the Positive polarity of Battery BT2 4 Using the Terminals supplied crimp the terminals on your Solar A...

Page 5: ...omplete the percentage setting or you go into the next Battery type setting by pressing and holding the button for 5 seconds Only need to set the charge rate percentage you want for Battery 1 the cont...

Page 6: ...st A Rated current test C External battery temperature sensor test if connected After going into charging process the LCD displays the charging statues as below Press BT1 or BT2 button in sequence the...

Page 7: ...lement 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...

Page 8: ...ON ON Flash Flash Flash The solar controller abnormal mode LCD display LED indication LCD backlight The controller over temperature protection Flash The controller provides two optional devices exclu...

Page 9: ...rrent drops to 0 5 0 1 AMP or Absorption charging timer timed out 4 Hour 2 7 Equalization charge active only for the battery type WET or Calcium battery Battery voltage discharged to less than 10 0 2...

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