Victron Skylla-i 24/80(3) 230V Battery Charger

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
Aluminum 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:
Synchronized parallel operation
Several chargers can be synchronized 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 minimize
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, the 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 a DC supply.

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
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.

Learn more about batteries and battery charging
To learn more about batteries and charging batteries, please refer to our book 'Energy Unlimited'
(available free of charge from Victron Energy and downloadable from www.victronenergy.com).

Please note: There is no additional cables included with this product.