Victron Energy Skylla-IP65

Skylla-IP65 battery chargers

Skylla-IP65 (1+1): two outputs for charging two battery banks
The Skylla-IP65 (1+1) has 2 separate outputs. The second output is intended 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 full starter battery.

Skylla-IP65 (3): three full power outputs for charging 3 battery banks
The Skylla-IP65 (3) has 3 separate outputs. All outputs can deliver the full rated output current.

IP65 protection
Epoxy powder coated steel housing and splash-proof. Withstands the challenges of a difficult environment: heat, humidity and salty air. An acrylic coating protects the circuit boards against corrosion as best as possible. Temperature sensors ensure that the power components are always operated within the specified limits. In extreme environmental conditions, the output current is automatically reduced if necessary.

LCD display
For status monitoring and easy adaptation of the charging algorithms to a specific battery and its operating conditions.

CAN bus interface (NMEA2000)
For connection to a CAN bus network, to a Skylla-i control panel or to the Color Control digital display.

Synchronized parallel operation
Several 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 right charge amount for a lead-acid battery: adjusted constant voltage time
If only weak discharges occur, the constant voltage time is kept short to avoid overcharging the battery. After a deep discharge, the constant voltage phase is automatically extended to ensure that the battery is fully charged.

Preventing damage from excessive gassing: BatterySafe mode
To shorten the charging time, the highest possible charging current in combination with a high constant voltage is aimed for. However, to avoid excessive gas development towards the end of the constant current phase, the Skylla-IP65 limits the speed of the voltage increase after the gassing voltage has been 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 then reduced to 2.2 V/cell (26.4 V for a 24 V battery) to prevent gassing and
to minimize 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 kind of equalization charge that
Electrolyte stratification and sulfation - the two main causes of premature battery failure - are prevented.

Longer battery life through temperature compensation
A battery temperature sensor is supplied with every Skylla-IP65 device. The temperature sensor ensures that the charging voltage decreases as the battery temperature increases. This is particularly important for gel batteries or when constant high 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 remote control port of the charger. Alternatively,
Fully control voltage and current by connecting to the CAN bus port.