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Model:

MCB-1225

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

12 Volt 

Multi Chemistry Booster Charger

Operating Instructions

Please read these instructions before use

Notes:

 Before installation the user shall determine the suitability of the product to ensure correct application. A large spark can sometimes 

be generated during the connection sequence due to the current required to charge the internal capacitors inside the reducer.

The following connection sequence is to be followed: Ground (Black), Input (White), Output (Red), Control (Blue).
1.

 Disconnect the battery supply.

2. 

Choose a mounting position. It is recommended to mount the unit inside the vehicle as the unit is not waterproof. 

Select a position with good ventilation where air can pass freely around the unit. Avoid locations such as fuel lines or 
where external heat is produced e.g. exhaust system or where the batteries are located. 

 

3.

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

4.
NOTE: 

A large spark can sometimes be generated during connection, due to the current required to charge the capacitors in the charger.

Input LED Indicator:

the voltage is above 12.1Volts.

Output LED Indicator:

Operation Guide

LED Indicators Guide

Thank You for purchasing another quality GSL Product. This Micro Controlled Booster Charger has been designed to overcome the limitations 
of most auxiliary charging systems. It is a full 3 stage 25Amp Charger which will operate from voltages as low as 9.2Volts up to 15Volts still 

AGM, GEL or Flooded (For Lead Acid) 

according to your auxiliary battery type.

Operational Parameters 

Maximum Current at Bulk Charge

25Amps

Lowest operating Voltage

9.2Volts

Maximum Operating Voltage

15Volts

Maximum Charge Voltage for Flooded Cell (LEAD ACID)

14.6Volts

Maximum Charge Voltage for A.G.M

14.4Volts

Maximum Charge Voltage for GEL

14.2Volts

Float Voltage 

13.5Volts

MCB-R2

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