Lithium SuperPack 12,8 V/20 Ah (M5)

This battery uses Lithium Iron Phosphate (LiFePO4) technology, known for its safety, long lifespan, and energy efficiency.

The nominal voltage of this battery is 12.8 V and its nominal capacity is 20 Ah at 25 °C.

The nominal energy of this battery is 256 Wh at 25 °C.

Yes, the Victron Energy Lithium SuperPack battery includes a Battery Management System (BMS) and a safety switch. This integration simplifies installation by eliminating the need for additional external components.

The internal BMS ensures protection against overcharging, excessive discharging, as well as low or high temperatures. It disconnects the battery if maximum limits are exceeded, for example, it blocks charging below 0 °C and discharging below -20 °C.

The lifespan of this battery is estimated at 2,500 cycles at 80% depth of discharge (DoD) and at a temperature of 25°C.

The round-trip energy efficiency (discharge from 100 % to 0 % and recharge back to 100 %) of this lithium-ion battery is 92 %, which is significantly higher than that of lead-acid batteries (around 80 %).

The maximum continuous discharge current is 30 A, and the maximum continuous charge current is 15 A.

The battery can handle a peak discharge current of 80 A for a maximum duration of 10 seconds.

The recommended charge voltages are as follows:

Absorption voltage: 14.2 V – 14.4 V
Floating voltage (float charge): 13.5 V
It is preferable that the absorption period does not exceed 4 hours to optimize battery lifespan.

The end-of-discharge voltage of this battery is 10 V.

For discharging: from -20 °C to +50 °C. For charging: from 0 °C to +45 °C. Charging is automatically blocked when the cell temperature drops below 0 °C (±3 °C) and resumes above 3 °C (±3 °C).

The battery dimensions are 167 mm (height) x 181 mm (width) x 77 mm (depth), and its weight is 3 kg.

The battery is equipped with M5 threaded inserts for power connections.

No, these batteries are not approved for series connection. They are designed for individual use or parallel connection only.

Yes, these batteries can be connected in parallel to increase the total system capacity. There is no limit on the number of units that can be connected in parallel.

Yes, this battery is specifically designed for marine applications requiring a compact and self-contained power solution, thanks to its integrated BMS and ease of installation.

Unlike lead-acid batteries, Lithium SuperPack batteries do not need to be fully charged to optimize their lifespan. In fact, their lifespan slightly improves with partial charging rather than full charging, which is a major advantage of Li-ion batteries.

This battery has an IP43 protection rating, meaning it is protected against solid objects larger than 1 mm and water splashes.

Yes, you can connect multiple Victron Energy Lithium SuperPack 12.8V/20Ah batteries in parallel to increase the total capacity of your system. There is no limit to the number of units you can connect in parallel.

However, connecting these batteries in series is not permitted.

Regarding mounting, the battery can be installed upright or on either of its longer sides. It is important not to install it with both terminals facing downward.