How to setup a second LB series lithium battery

Installation & Wiring

Before configuring the system, the additional LB series battery should be wired into the vehicles 12 volt electrical system. The magnetic communication cable must also be connected from the battery to the CAN Bus of the Sargent Control System.

Before connecting two batteries in parallel, ensure they are both fully charged, so voltages are the same on each battery. This will avoid a high current flow between the batteries when first connected.

Changing the battery address

If an additional battery is added in parallel to create a dual battery system, then the communication address of the additional battery must first be changed from its default address of ‘1’ to address ‘2’, so both batteries can communicate at the same time.

Before changing the battery address ensure only the battery to be changed has a communication cable attached

Procedure shown for EC940 4” screen but EC970 7” screen is identical

Configuring Single or Dual batteries

Before the display can communicate with the Sargent Lithium+ battery, it must first be enabled from the ADVANCED SETUP menu

For a Single battery system select Lithium+

For a Dual battery system select Lithium+ x2

Information Displays

Once the batteries have been configured, additional screens and information will be available from the POWER menu of the Control Panel

Screens for EC940 - 4" Display

For dual battery systems the information from each battery is combined into one screen. For example two 70Ah batteries will be shown as a total of 140Ah

Screens for EC970 - 7" Display

For dual battery systems, pressing the battery symbol will switch the screen to show information from Battery1 or Battery2 as required