GSL REC-1240C, REC-1260C Operating Instructions Manual

Page 1 of 4

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.

Page 2 of 4

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

7. Never smoke or light cigarettes near a battery.

8.Do not place tools on top of battery or allow tools to fall on battery.

9. Always wear eye protection near a charging battery.

10. Ensure a “well” ventilated area is used when testing or re-charging batteries.

11. Ensure ventilation is adequate and venting holes are not obstructed. Inadequate ventilation may over-heat the

12. .

Seek medical attention if necessary.

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 safety and for the longevity of your purchase, the unit will shut down to protect itself
and your batteries when the unit exceeds it nominal operating temperature. To reset this condition the unit must be
disconnected from the battery for at least one minute to allow cooling and for the microprocessor to reset.

Should product require service, return it to your place of purchase for Warranty Advice.