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Fault: 

Charging does not start, i.e. the lamp continues to shine, 

and the yellow LED does not change to the steady yellow light.

Probable cause: 

The battery voltage is too low, less than 7 V, to 

start the charger. This may be because the battery is worn or faulty 
or has been completely discharged.

Action: 

Try to connect the 13.7 V Supply mode for a short while 

(max. 10 min). Restart charging. This usually works if the battery is 
really heavily discharged, but otherwise in good condition. Please 
be careful with the connection of the terminal clamps. 

Fault: 

Charging started normally, but did not complete. The red 

LED illuminates and charging is terminated.

Probable cause 1: 

Defective battery. The battery has a fault that 

does not permit it to be charged, e.g. a short circuit.

Action: 

Replace the battery.

Probable cause 2:

 Parallel load. If a piece of equipment that drains 

current is connected to the battery, there is a risk that the capacity 
of the charger is not sufficient to charge the battery within the time 
constraints that are built into the charger for safety reasons.

Action:

 If possible, disconnect the parallel load and repeat 

charging, or purchase a larger charger suitable to cater for both 
the needs of the charge and parallel load drain.

Probable cause 3:

 Battery is too large. The battery is larger than 

the recommended size for the charger, which means that the 
charge could not be completed within the time constraints that are 
built into the battery for safety reasons.

Action:

 Repeat charging.

Probable cause 4:

 The high temperature cut-out that monitors the 

battery temperature has been triggered. The reason for the high 
temperature could be that the battery has an internal fault, or that 
the ambient temperature is high.

Action:

 If charging is carried out at room temperature, the high 

temperature is probably caused by a battery fault or wear. The 
battery should be replaced. If charging is taking place at a high 
ambient temperature, charging may be resumed when the battery 
has cooled to room temperature.

2.

3.

Continues on next page.

Summary of Contents for WSC 720

Page 1: ...DIAGNOSTIC POWER SUPPLY WSC 720 1 user guide 12 V 24 V lead acid batteries 40 500 ah gb ...

Page 2: ...C720 will ensure fully recharged batteries and also act as a power supply for diagnosis during car service Read the safety instructions and user guide carefully If you follow the instructions you will benefit from a high performance charger and power supply that will give excellent service for many years to come Discarded packaging can be recycled For more information about Exide and our products ...

Page 3: ... power socket 3 Select the correct function by pressing the Mode button Charging Choose voltage 12 V or 24 V Choose battery technology Standard or AGM Gel Power Supply 13 7 V Power Supply OBS This function is only for 12 V system 4 When the LED for the select mode is green the battery is fully charged Remove the mains plug and the cable clamps 5 If wrong voltage or polarity is chosen the charger w...

Page 4: ...t charge as long as it is connected maintain full charge In the charge modes 12 V and 24 V WSC720 will also maintain system voltage functioning as a Diagnostic Power Supply giving up to 70 A In 13 7 V Power Supply WSC 720 will act as a Power Supply for 12V equipment This mode will give a current up to 70 A useful as Power Supply at replacement of 12 V batteries Power Supply in 12 V systems Power S...

Page 5: ...o check the connection and adjust accordingly 5 WSC720 will start charging in the mode last used If necessary press the Mode button repeatedly until desired mode is selected Mode For 12 V batteries Charging of Standard or AGM Gel see page 6 For 24 V batteries Charging of Standard or AGM Gel see page 6 For 12 V systems Voltage and Power Supply 13 7 V Indication If WSC720 is correctly connected the ...

Page 6: ...lamps 8 If the cables are left in place there will be a continual maintenance of charge at 13 7 V otherwise stop the charging according to the instruction Facts about Batteries Batteries are either AGM GEL or Standard type AGM GEL are valve regulated batteries where the electrolyte the acid is absorbed or is in gel form and are often clearly marked AGM or GEL Other batteries are standard batteries...

Page 7: ...ing with batteries Battery acid electrolyte is corrosive If eyes or skin come into contact with the acid rinse immediately with copious amounts of water and contact a doctor immediately Never charge a frozen battery Terminate the charging if the battery gets hot Never position WSC720 above the battery during charging Do not cover WSC720 Note that in the 13 7 V Supply mode the charger provides a co...

Page 8: ...is mode WSC720 will provide a voltage of 13 7 V and max 70 A 13 7 V Power Supply is to be used for Power Supply in 12 V electrical systems and for continuous charging float charge of 12 V batteries For maintaining voltage in 24 V systems Mode 24 V charging shall be used WSC720 is equipped with temperature compensation The thermal sensor is integrated in the negative black terminal clamp Thanks to ...

Page 9: ...ted to the battery the polarity reversal protection will be activated and charging will not start Action Check that the charger is connected using the correct polarity Probable cause 2 Wrong voltage mode for charging 12 V for a 24 V system Action Adjust the voltage Mode Probable cause 3 Wrong voltage mode for charging 24 V for a 12 V system Action Adjust the voltage Mode Probable cause 4 A voltage...

Page 10: ...t the capacity of the charger is not sufficient to charge the battery within the time constraints that are built into the charger for safety reasons Action If possible disconnect the parallel load and repeat charging or purchase a larger charger suitable to cater for both the needs of the charge and parallel load drain Probable cause 3 Battery is too large The battery is larger than the recommende...

Page 11: ... to the positive cable and that the black clamp to the negative The case may be cleaned using a soft damp cloth and a mild detergent The charger must be disconnected from the mains when being cleaned The product is not suitable for use by persons who lack knowledge or experience unless they are supervised by or have received information about how to use the product from a person who is responsible...

Page 12: ...harging voltage 24 V VR 27 4 28 8 VDC at 25ºC Charging voltage Supply 13 7 VDC Charging current 12 V Max 70 A Charging current 24 V Max 60 A Ambient temperature 25 50 ºC Cooling Fan Type of charge IU1 U2 U3 U4 A fully automatic technology adapted charging profile in five steps alt 13 7V Power Supply float charge Lead acid battery types Standard and AGM Gel Battery capacity 40 500 Ah Dimensions LxW...

Page 13: ...r AB Idavägen 11 Växjö Sweden The manufacturer guarantees that the unit complies with the relevant standards Tested and approved by Intertek Semko LVD Standard EN 60335 2 29 2004 A11 97 IEC335 2 29 2002 modified EN 60335 1 2002 A11 2004 A1 2004 A12 2006 A2006 EN50366 2003 A1 2006 EMC Standard EN 61000 6 2 EN 61000 6 3 EN 61000 3 2 EN 61000 3 3 ...

Page 14: ...e or distribution the mandatory guarantee rights apply The guarantee NL 2010 2 years will no longer be valid if the charger has not been handled correctly or opened or repaired by any other than Exide Technologies or its authorized representatives Exide Technologies is not responsible for other costs than those stated above i e no potential consequential costs Nor is Exide Technologies liable unde...

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