Victron Skylla-I High-Power 24V Battery Chargers

Please note that this charger is available in 230/240VAC input only, and cannot be connected to a common 120VAC power supply.

The Victron Energy Skylla-i is a modern and powerful range of high-output 24VDC battery chargers that withstand the rigors of highly adverse environments, and available in multiple output configurations.

Skylla-i (1+1): two outputs to charge 2 battery banks
The Skylla-i (1+1) features 2 isolated outputs. The second output, limited to approximately 4 A and
with a slightly lower output voltage, is intended to top up a starter battery.

Skylla-i (3): three full current outputs to charge 3 battery banks
The Skylla-i (3) features 3 isolated outputs. All outputs can supply the full rated output current.

Rugged
Aluminium epoxy powder coated cases with drip shield and stainless steel fixings withstand the
rigors of an adverse environment: heat, humidity and salt air.
Circuit boards are protected with an acrylic coating for maximum corrosion resistance.
Temperature sensors ensure that power components will always operate within specified limits, if
needed by automatic reduction of output current under extreme environmental conditions.

Flexible
Next to a CAN-bus (NMEA2000) interface, a rotary switch, DIP switches and potentiometers are
available to adapt the charge algorithm to a particular battery and its conditions of use.
Please refer to the manual for a complete overview of the possibilities.

Important features:

• Synchronised parallel operation
  Several chargers can be synchronised with the CAN bus interface. This is achieved by simply
  interconnecting the chargers with RJ45 UTP-cables. Please see the manual for details.
• The right amount of charge for a lead-acid battery: variable absorption time
  When only shallow discharges occur the absorption time is kept short in order to prevent
  overcharging of the battery. After a deep discharge the absorption time is automatically increased to
  make sure that the battery is completely recharged.
• Preventing damage due to excessive gassing: the BatterySafe mode
  If, in order to quickly charge a battery, a high charge current in combination with a high absorption
  voltage has been chosen, the Skylla-i will prevent damage due to excessive gassing by
  automatically limiting the rate of voltage increase once the gassing voltage has been reached.
• Less maintenance and aging when the battery is not in use: the Storage mode
  The storage mode kicks in whenever the battery has not been subjected to discharge during 24
  hours. In the storage mode float voltage is reduced to 2,2 V/cell (26,4 V for 24 V battery) to minimise
  gassing and corrosion of the positive plates. Once a week the voltage is raised back to the
  absorption level to ‘refresh’ the battery. This feature prevents stratification of the electrolyte and
  sulphation, a major cause of early battery failure.
• To increase battery life: temperature compensation
  Every Skylla-i comes with a battery temperature sensor. When connected, charge voltage will
  automatically decrease with increasing battery temperature. This feature is especially recommended
  for sealed lead-acid batteries and/or when important fluctuations of battery temperature are
  expected.
• Battery voltage sense
  In order to compensate for voltage loss due to cable resistance, the Skylla-i is provided with a
  voltage sense facility so that the battery always receives the correct charge voltage.
• Suitable for AC and DC supply (AC-DC and DC-DC operation)
  The chargers also accept 180-350VDC for DC-DC charging.
• Use as a power supply
  As a result of the perfectly stabilized output voltage, the Skylla-i can be used as a power supply if
  batteries or large buffer capacitors are not available.
• Li-Ion (LiFePO4) ready (requires additional components)
  Simple charger on-off control can be implemented by connecting a relay or open collector
  optocoupler output from a Li-Ion BMS to the remote control port of the charger. Alternatively,
  complete control of voltage and current can be achieved by connecting to the galvanically isolated
  CAN bus port.