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Model:

REC – 1240C

REC – 1260C

Unit 2, 110 Station Road, Seven Hills ,NSW,  2147, Australia

24V to 12V 

Switchmode Battery Chargers

Operating Instructions

Please read these instructions before use

Congratulations on purchasing your new GSL Electronics 3 stage 24V to 12V Battery Charger. This product 

utilises Switchmode and Microprocessor technology for the charging of 12Volt Lead Acid batteries. The charger 

provides a safe and fast method of restoring discharged batteries and maintaining them. This is achieved via 

precisely controlled Bulk, Absorption and Float charging states. Both models are fully protected against overload, 

short circuit, over temperature, reverse polarity connection, over voltage and with a bulk charge timeout for 

additional safety. The models are built in a compact and strong aluminium extrusion which can be easily secured 

to both vertical and horizontal surfaces. Before starting the charge cycle the battery voltages are evaluated to 

detect faulty batteries. 

Bulk Mode

 – This mode of the battery charger delivers bulk charging current regulated to 40 / 60 Amps into 

the battery being charged. After the battery voltage rises to approximately 70% charge. The charger will switch 

automatically into Absorption Mode.

Absorption Mode

 – In this mode the battery charger output voltage is maintained at 14.5V until the current drops 

Float Mode

 - The voltage is reduced to 13.5V and maintained at that level with the charger supplying just enough 

current to maintain the battery at full capacity.  

REC-C-R1

Installation & Safety Precautions:

1.

 The following connection sequence is to be followed: 

    Ground (BLACK), Input (BLUE), Output (RED) and Control (WHITE).

2.

 Preferably mount the unit inside the vehicle. Avoid locations where external heat is produced e.g. exhaust 

system or where the batteries are located.

3.

 Choose a position with good ventilation where air can pass freely around the unit.  

 

4.

 Ensure the unit is protected from water spray and other sources of contamination e.g. oil, grease and dust. 

5.

6.

, due to gases emitted from the battery, 

     which may ignite and explode.

Summary of Contents for REC-1240C

Page 1: ...ery voltages are evaluated to detect faulty batteries Bulk Mode This mode of the battery charger delivers bulk charging current regulated to 40 60 Amps into the battery being charged After the battery voltage rises to approximately 70 charge The charger will switch automatically into Absorption Mode Absorption Mode In this mode the battery charger output voltage is maintained at 14 5V until the cu...

Page 2: ...ecessary REC C R2 If the unit is in one of the following conditions reset as follows Battery Reversal Protection If the unit is hooked up in reverse then simply reconnect the unit as per Fig 1 Output Over Voltage If the output over voltage protection has been tripped then there will be no operation from the unit Contact supplier or GSL Electronics for Warranty Advice Thermal Protection For your sa...

Page 3: ...uld normally be charged in 5 hours using a 20 Amp battery charger Similarly it would take approximately 10 hours to charge the battery with a 10 Amp battery charger LED Indicators operating mode of the unit via two LED indicators Input LED Nominal operation is indicated by the Input LED remaining solid Flashing Input LED indicates that input is below 25V If the input voltage drops below 22V charge...

Page 4: ... to the original despatch destination We regret that no liability can be accepted for consequential or special damages of any kind howsoever arising in connection with products supplied by the seller This warranty is in lieu of all other warranties expressed or implied No representative is authorised to assume for the seller any other liability in connection with the seller s products REC C R1 REC...

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