Victron Skylla-i 24/80 (1+1) 230V battery charger 80A 24V

Victron Skylla-i battery charger for 24V batteries

One output with full rated power and one auxiliary charging output with 4 A are available. The charging voltage can be precisely adjusted to any battery system.
The charger requires a 230V input at 50/60Hz. The charging voltage can be measured directly at the battery terminals to compensate for voltage drop due to cable resistance. An external sensor allows for measuring the battery temperature and adjusting the charging voltage accordingly.

Less maintenance and aging during battery idle time: the storage mode
Storage mode is activated whenever no discharge has occurred within 24 hours. In storage mode, the float charge voltage is then reduced to 2.2 V/cell (26.4 V for a 24 V battery) to minimize gassing and corrosion on the positive plates.
Once a week, the voltage is increased back to the constant voltage threshold to 'refresh' the battery. This achieves a kind of equalization charge, which prevents electrolyte stratification and sulfation – the two main causes of premature battery failure.

Robust
The epoxy powder-coated aluminum housings with drip protection and stainless steel brackets withstand even the harshest environmental conditions: heat, humidity, and salty air. An acrylic coating provides optimal protection for the circuit boards against corrosion.
Temperature sensors ensure that the electrical components always operate within the defined limits. Under extreme environmental conditions, the output current is automatically reduced if necessary.

Preventing damage from excessive gas production: Battery saving mode
To shorten the charging time, the aim is to achieve the highest possible charging current in conjunction with a high constant voltage. However, to prevent excessive gassing towards the end of the constant current phase, the Skylla-i limits the rate of voltage increase after the gassing voltage has been reached.

Suitable for lithium-ion batteries (LiFePo4)
A simple on/off control can be installed by connecting a relay or an open-collector optocoupler output from a Li-Ion BMS to the remote control port of the charger.
Alternatively, voltage and current can be fully controlled by establishing a connection to the galvanically isolated CAN bus connection.

Two outputs for charging two batteries
The chargers have two isolated outputs. The second output is intended for charging a starter battery. It has a slightly lower output voltage and is limited to 4 A.

Battery voltage sensor
To compensate for voltage losses due to cable resistance, the Skylla-i has a voltage sensor in the charging circuit, so that the battery always receives the correct charging current.

Technical data