Victron Skylla-IP65 12/70 (1+1) 120-240V battery charger

Victron Skylla IP 65 12/70 battery charger

A powerful, waterproof, and intelligent battery charger with a 7-stage adaptive charging algorithm, suitable for a wide range of battery types and chemistries with a dedicated lithium-ion charging algorithm.
The wide range of universal input voltage increases installation flexibility, the charger maintains its full output power regardless of where in the world it is located.
Thanks to its IP65 protection rating, this charger is particularly suitable for use in marine, mobile and industrial applications, and can withstand adverse environmental conditions: heat, humidity and salt air.

Skylla-IP65 (1+1): two outputs for charging two battery banks
The Skylla-IP65 (1+1) has two separate outputs. The second output is designed for charging the starter battery. Consequently, it is limited to 3 A and has a slightly lower output voltage to maintain the charge of the usually fully charged starter battery.

Skylla-IP65 (3): three full power outputs for charging 3 battery banks
The Skylla-IP65 (3) has three separate outputs. All outputs can deliver the full rated output current. IP65 protection: Epoxy powder-coated steel housing and splash-proof. It withstands the challenges of a harsh environment: heat, humidity, and salty air. An acrylic coating provides optimal protection for the circuit boards against corrosion. Temperature sensors ensure that the power components always operate within the specified limits. Under extreme environmental conditions, the output current is automatically reduced if necessary.

LCD display
For status monitoring and easily adapting charging algorithms to a specific battery and its operating conditions. CAN bus interface (NMEA 2000) For connection to a CAN bus network, a Skylla-i control panel, or the Color Control digital display. Synchronized parallel operation: Multiple chargers can be connected in parallel and synchronized using a CAN bus interface. This is achieved by simply connecting the chargers to each other using RJ45 UTP cables.

The correct charge level for a lead-acid battery: adjusted constant voltage time
If only slight discharges occur, the constant voltage period is kept short to prevent overcharging the battery. After a deep discharge, the constant voltage period is automatically extended to ensure the battery is fully charged.

Preventing damage caused by excessive gassing:
BatterySafe Mode: To shorten charging time, the highest possible charging current combined with a high constant voltage is desired. However, to prevent excessive gassing toward the end of the constant current phase, the Skylla-IP65 limits the rate of voltage rise after the gassing voltage is reached.

Less maintenance and aging when the battery is idle:
Storage Mode Storage mode is activated whenever no discharge has occurred within 24 hours. In storage mode, the float charge voltage is reduced to 2.2 V/cell (26.4 V for a 24 V battery) to minimize gas evolution and corrosion on the positive plates. Once a week, the voltage is increased back to the constant voltage threshold to "refresh" the battery. This creates a type of equalizing charge that prevents electrolyte stratification and sulfation – the two main causes of premature battery failure. Longer battery life through temperature compensation Every Skylla-IP65 device is supplied with a battery temperature sensor. The temperature sensor ensures a decreasing charge voltage as the battery temperature rises. This is particularly important for gel batteries or when constant large temperature fluctuations are expected.

Battery voltage sensor
To compensate for voltage losses caused by cable resistance, the Skylla-IP65 has a voltage sensor in the charging circuit so that the battery always receives the correct charging current.

Use as a power source
Due to the excellent control circuit, the Skylla-IP65 can be used as a power source with a perfectly stabilized output voltage when no batteries or large buffer capacitors are available.

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