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Description:
The Battery Guard (hereafter BG) is an intelligent, fully waterproof, battery guard with expansion 

capabilities for an on/off switch, alarm buzzer or relay and our Battery Watch (not supplied). To 

ensure low losses, the BG is provided with two screw terminals, one Input + and one . The 

rest, like the minus and the accessories are connected via four 6.3 mm faston connectors. The LED 

indicates the output status (on/off) of the BG and in the programming mode the LED indicates the 

program position. The BG is provided with an ‘Automatic board system detection’ with which the BG 

automatically detects what the battery voltage (12V or 24V) of the system is, so that is does not need 

to be set manually. Both under and over voltage thresholds can be easily programmed.
Installation:
Mount the BG on a cooling (metal) surface so that it can release the developed heat. Connect the 

BG as close as possible to the battery (maximum distance: 50cm). This way can the voltage can be 

monitored exactly. Any programming of the BG must take place before the equipment (users) can be 

connected. For the minus connection use a cable of 1.5mm

2

 which goes directly from the battery to 

the BG and do not use this connection for anything else.
Warnings:

•  The product should only be connected by skilled fitters / mechanics, which are aware of the 

regulations for working with high battery voltages.

•  Live parts must not come into contact with the housing of the BG.
•  Use of bad material and / or too thin wires can damage the BG.
•  A short circuit between the positive and negative terminals of the battery may cause severe 

damage to your system.

•  Always use fuses (of the correct value).

Operation:
In the standard programming (position 11 in the “Configuration Table”) a buzzer may be connected 

to the alarm output. This will sound an alarm after 15 seconds when there is under voltage. If the 

situation does not change, the BG will turn off attached devices after 60 seconds and the alarm 

will be switched off. Since with over voltage there is a risk of damage to the connected equipment 

this will be switched off immediately when there is over voltage (16/32V) and the alarm output will 

pulsate. This is done to distinguish between an under voltage alarm and an over voltage alarm.
A second application is to connect a relay to the alarm output. The BG must then be programmed in 

position 12 (see “Programming”). The relay will switch on during an alarm and only switch off when 

reaching the reset value of the under voltage. The relay can thus be used to activate a charger or 

generator.
Remote ON / OFF
You can connect a switch to the OFF terminal of the BG. If the OFF terminal is connected to the Minus 

the BG will immediately switch off the attached devices. If the switch is opened again, the BG will 

switch on again after about 5 seconds. Since the current through the switch is zero (<10mA) a small 

switch can be used.
Battery Watch (optional)
As can be seen in the connection diagram, there may be an optional Battery Watch connected. This is 

a simple battery status monitor which, by means of 3 LEDs, indicates the status of the battery. Please 

contact your dealer.
Programming:
To start the programming mode a connection must be made between the Program Input and Input+. 

The LED will flash. The number of flashes indicates the program position (see table on back) that the 

BG is in. As soon as the desired program position is reached the connection (between the Program 

Input and the Input+) must be broken. As confirmation the BG will repeat the number of flashes. If it 

does not match your selection, you can repeat the steps.
There are two types of settings that can be applied. Positions 1 to 10 adjust the threshold and reset 

values for an under voltage alarm and the operation of the alarm can be set with positions 11 and 12. 

These settings must be made separately (one after another).
When removing the battery voltage and programmed positions remain retained. Once the 

programming is complete, the equipment can be connected. First disconnect the battery connection, 

connect the equipment to the and then reconnect the battery.
Note: Before programming first disconnect the equipment from the BG.

BATTERY GUARD 40 / 60 / 200 OWNERS MANUAL

EN-LBC1224-40
EN-LBC1224-60

EN-LBC1224-200

Unit 11, 1029 Manly Road Tingalpa, Queensland, Australia 4173 Ph: 1300 851 535 / Fax: 07 3390 6911 Email: sales@enerdrive.com.au  |  Web: www.enerdrive.com.au

Alarm function

Position 11*

Normal alarm

Position 12

Relay function

24 Volt mode

Under voltage

Reset

Position 1*

21 V

24V

Position 2

20 V

23 V

Position 3

19 V

23 V

Position 4

22.5 V

26.5 V

Position 5

23 V

27.6 V

Position 6

21 V

25.6 V

Position 7

23 V

25.6 V

Position 8

23.6 V

25.6 V

Position 9

24 V

26 V

Position 10

20 V

26.4 V

* Default settings.

Normal alarm:- Alarm output is activated in case of 

emergency: deactivation after 1 minute.

Relay function:- Alarm is activated in case of emergency: 

deactivation upon reaching the reset voltage.

12 Volt mode

Under voltage

Reset

Position 1*

10.5 V

12 V

Position 2

10 V

11.5 V

Position 3

9.5 V

11.5 V

Position 4

11.25 V

13.25 V

Position 5

11.5 V

13.8 V

Position 6

10.5 V

12.8 V

Position 7

11.5 V

12.8 V

Position 8

11.8 V

12.8 V

Position 9

12 V

13 V

Position 10

10 V

13.2 V

Alarm function

Position 11*

Normal alarm

Position 12

Relay function

Configuration Table

READ THE OWNERS MANUAL CAREFULLY BEFORE INSTALLING BATTERY GUARD

All manuals and user guides at all-guides.com

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