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G. Power Supply Mode/2-Stage Battery Charger (see Fig.4)

In this mode the Charger can be used as Power Supply or 2-Stage Battery Charger.
This selected mode is intended to charge the batteries with external loads such as in caravans and motor homes. 
The external load can draw power from the charger while the charger is charging the battery. The charger is not affected by the
current draw being diverted by an external load as it will switch from Bulk to Float Mode.
2-Stage charger cannot completely charge the battery when the charger switches from Bulk to Float Mode and the battery will in
most cases be about 80% charged. The battery will receive the remaining charge while in Float Mode over several days.
It is highly recommended to switch to 3-Stage Charger Mode periodically when the external load is disconnected.
The external load should not exceed 50% of the maximum current draw of the charger unless the battery is fully charged. If the
Bulk LED is on most of the time then the load is too large.

G1.

Power Supply Mode

        The charger can also be used as a stand alone power supply without connection to a battery 

It will provide a constant voltage according to the selected Float Voltage (13.2/13.5/13.8V) and rated DC current of the charger.
It is not recommended for high surge loads in stand alone applications as the initial high surge currents can trigger the overload
protection circuit.

Fig.4  Power Supply / 2-Stage Charger Mode Application

Summary of Contents for BC-1230

Page 1: ...er ventilation vents are unobstructed for efficient fan cooling Do not charge non rechargeable batteries Charging wrong type or under sized batteries may cause fire or explosion Do not use the charger if it has been dropped or damaged Do not remove charger casing as there is no user serviceable parts inside Do not attempt to charge a frozen battery Do not attempt to charge a damaged battery Do not...

Page 2: ...e Selection Slide the Switch to select charging mode for GEL AGM Wet or Calcium Calcium type battery 3 Float Voltage Selection Slide the Switch to select Float Charge Voltage 13 2 13 5V 13 8V 4 Charge Status LED Display Charger ON Green 3 Stage Charger Mode Red Power Supply Mode BULK Red Bulk charging with constant maximum current ABSORPTION Orange Absorption charging with preset constant maximum ...

Page 3: ... BC 1230 30A BC 1240 40A BC 1250 50A Battery Capacity 100 AH 300 AH 120 AH 400 AH 150 AH 500 AH C Battery Charger Installation and Connection Observe warnings and safety precautions before operating the charger Check the battery condition check the cell levels for wet type batteries and clean the battery terminals Secure the battery charger in a well ventilated area making sure the mounting surfac...

Page 4: ...et by the user according to the type of battery used E Manual Equalization Charging for Wet and Calcium Calcium type batteries Wet lead acid and Calcium Calcium type batteries require periodic high voltage charging to balance the voltage of each cell to reverse the high concentration of electrolyte at the bottom and clear up large sulfate crystals on the plates You can use the Calcium Calcium sele...

Page 5: ... The battery will receive the remaining charge while in Float Mode over several days It is highly recommended to switch to 3 Stage Charger Mode periodically when the external load is disconnected The external load should not exceed 50 of the maximum current draw of the charger unless the battery is fully charged If the Bulk LED is on most of the time then the load is too large G1 Power Supply Mode...

Page 6: ...e temperature sensor and then switch on the charger to activate the temperature control function Do not plug in the Temperature Sensor into the Charger during charging I Cable Size Selection Wire Size AWG Area mm2 Maximum one way distance Metres for 2 Voltage loss 12V 30A Maximum one way distance Metres for 2 Voltage loss 12V 40A Maximum one way distance Metres for 2 Voltage loss 12V 50A 10 5 26 1...

Page 7: ...r 20 hours of charging Absorption light remains on all the time Wrong battery type selection eg charging Gel battery with Calcium Calcium OR Wet type selection Total battery capacity is too high for dual charging Battery temperature too high Battery is defective A load is connected to the battery and the charger is not in Power Supply Mode Check the battery label and change battery type selection ...

Page 8: ...6A 7 5 3 2A 9 4 4 0A Protection Overload 90 110 Rated Output Current or 50 Rated Output Current Soft Charge Protection Type Constant Current Limiting recovers Automatically after Fault Condition is Removed Short Circuit Recovers Automatically After Fault Condition is Removed Reverse Polarity Car Blade Fuse Over Temperature Protection Type Shut Down OVP Output Over Voltage Yes Cooling Cooling Metho...

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