1. Introduction and safety
Before following the instructions in this document make sure to first troubleshoot the battery. Follow the troubleshooting
instructions in the Lithium Battery Smart manual, see https://www.victronenergy.com/media/pg/Lithium_Battery_Smart/en/
troubleshooting-support-and-warranty.html.
• In case of a cell fault, the battery is irreparable. We do not supply spare cells.
• In case of a circuit board fault, the battery is repairable. We supply spare circuit boards.
This repair instruction describes how to replace the Lithium Battery Smart circuit board with a spare.
This instruction is also available as a video:
https://www.youtube.com/embed/FNS1U5ofeGE
Note that in this instruction, photos of a 200Ah 12.8V battery are used. The other battery models have slightly different circuit
boards and cell layouts, but the general method of replacing the circuit board is the same. Refer to the Lithium Battery Smart
spare parts list on the next page for the part number and a photo of the circuit board for each battery model.
WARNING - HIGH RISK OF ACCIDENTAL SHORT CIRCUIT!!
Short circuits of lithium batteries can be highly hazardous. If you don't understand the risks of exposing
battery cell terminals and the consequences of short circuits in lithium batteries, you must not carry out this
procedure. This information is presented for competent personnel intending to work from a bench top in an
uncluttered space.
This procedure is made publicly available for the benefit of those who are comfortable with, and able to, carry
out the repair themselves.
In case you are not, this is not a problem. Contact your dealer to arrange for the repair to be carried out by an
authorised person.
When performing repairs on a lithium battery, be aware that you are working on live equipment. Although
the voltages are not that high (12.8 or 25.6V), the battery can supply very high currents in case of a short
circuit. Take special care not to accidentally short circuit the positive and negative battery terminals, battery
cell terminals or busbars. Always use insulated tools.
Lithium Battery Smart circuit board replacement instruction
Page 1 Introduction and safety