GSL electronics REC25HV Operating Instructions

Model:
REC25HV
Page 1 of 4
Congratulations on purchasing your new GSL Electronics High Voltage Reducer/Charger. This product utilises
Switchmode and Microprocessor technology for the charging of 12V and 24V Batteries(Lithium,AGM,GEL and
Flooded Cell). As well as charging functionality it is also able to act as a standard Reducer from inputs as high
as 80V to either 12V or 24V. 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. It is
fully protected against overload, short circuit, over temperature, 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 25 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 / 29V until the current
drops below a controlled threshold. The battery is brought up to a 90% charge then enters float mode.
Float Mode - The voltage is reduced to 13.5V / 27V and maintained at that level with the charger supplying just
enough current to maintain the battery at full capacity.
Fixed Mode(Reducer Mode Only) : When the unit is set to REDUCER mode the unit will output a fixed voltage
of either 13.5V or 27V.
Installation & Safety Precautions:
1. Before mounting ensure that you have set the internal jumpers to suit your batteries and your system. Refer to
Page 3 for how to access and set the jumpers.
2. The following connection sequence is to be followed after the Batteries have been disconncted and isolated
from the installation:
Ground (BLACK), Input (WHITE), Output (RED) and Control (BLUE).
3. Preferably mount the unit inside the vehicle. Avoid locations where external heat is produced e.g. exhaust
system or where the batteries are located.
4. Choose a position with good ventilation where air can pass freely around the unit.
5. Ensure the unit is protected from water spray and other sources of contamination e.g. oil, grease and dust.
6. Ensure that unit is installed away from any flammable fumes, liquids or materials.
7. During charging process, do not use a naked flame near a battery, due to gases emitted from the battery,
which may ignite and explode.
25A High Voltage Reducer / Charger
Please read these instructions before use
Unit 2, 110 Station Road, Seven Hills ,NSW, 2147, Australia
More information https://www.caravansplus.com.au
Operating Instructions
REC-HV-R2