Lithium Battery Smart Manual

Victron Energy Lithium Battery Smart batteries are Lithium Iron Phosphate (LiFePO4 or LFP) batteries available with a nominal voltage of 12.8V or 25.6V in various capacities. This is the safest of the mainstream lithium battery types. They can be connected in series, parallel and series/parallel so that a battery bank can be built for system voltages of 12V, 24V or 48V. Up to four 12.8V batteries or two 25.6V batteries can be connected in series. A total of 20 batteries can be connected, resulting in energy storage of up to 84kWh in a 12V system or up to 102kWh in a 24V and 48V system.

A single LFP cell has a nominal voltage of 3.2V.  A 12.8V battery consists of 4 cells connected in series and a 25.6V battery consists of 8 cells connected in series.

LFP is the chemistry of choice for very demanding applications. Some of its features are:

Here is a list of all Lithium Battery Smart models, which are available in a variety of capacities and voltages:

For more information, like the datasheet, product photos, product drawings etc., also see the Lithium Battery Smart product page.

The battery has an integrated Balancing, Temperature and Voltage control system (BTV). The BTV connects to an external Battery Management System (BMS). In case of multiple batteries, the BTVs of several batteries are daisy chained and then connect to the BMS.

The BMS protects the battery cells against low and high cell voltages and against charging at too low or high temperatures.

This is how it works: The BTV monitors each individual battery cell. It balances the cell voltages and in case of high or low cell voltage, or in case of high or low cell temperature, it will generate an alarm signal. The alarm signal is received by the BMS and the BMS will turn off loads an/or chargers accordingly.

A Victron Energy BMS is essential for a correct operation of the lithium battery. The lithium battery is not allowed to be used without one. In addition to this you will also need to ensure that the BMS correctly controls all loads and charge sources that are connected to the battery.

The BMS is not included with the battery. It needs to be purchased separately. For more information on the different BMS types, see chapter The BMS models.

The battery is equipped with 50cm BMS communication cables. In case these cables are too short to reach the BMS, they can be extended by using the following BMS extension cables:

The BMS extension cables are not included with the battery. For more information see the BMS extension cable product page

The battery is equipped with Bluetooth and uses this to communicate with the VictronConnect app.

The VictronConnect app can be used for:

The VictronConnect app can be downloaded from the respective app stores or from the Victron Energy website. For download links and information about the VictronConnect app see the VictronConnect app web page.

The VictronConnect app