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.
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.
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.
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. Note: Two output and three output chargers cannot be paralleled with each other. 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: 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: 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 2.2V/cell (26.4V for 24V 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 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.
Input voltage (VAC): 230V
Input voltage range (VAC): 185-265V
Input voltage range (VDC): 180-350V
Maximum AC input current @ 180 VAC: 20A
Frequency (Hz): 45-65Hz
Charge voltage 'absorption' (VDC): 28.8V
Charge voltage 'float' (VDC): 27.6V
Charge voltage ‘storage’ (VDC): 26.4V
Charge current (A): 3 x 100A (max total output: 100A)
Charge algorithm: 7 stage adaptive
Battery capacity: 500-1000Ah
Charge algorithm (LiFePO4): 3 stage, with on-off control or CAN bus control
Temperature sensor: Yes
Power supply mode: Yes
Remote on-off port: Yes (can be connected to a Li-Ion BMS)
VE.Can communication port: Two RJ45 connectors, NMEA2000 protocol, galvanically isolated. Integrated 12V CAN-bus power supply, 30V DC maximum
Synchronised parallel operation: Yes, with VE.Can
Forced cooling: Yes
Protection: Battery reverse polarity (fuse) / Output short circuit / Over temperature
Operating temp. range: -20 to 60°C (Full output current up to 40°C)
Material & Colour: aluminium (blue RAL 5012)
Battery-connection: M8 bolts
230 VAC-connection: screw-clamp 10mm² (AWG 7)
Protection category: IP21
Weight: 16 lbs. (7 kg)
Dimensions (hxwxd): 405 x 250 x 150 in (16.0 x 9.9 x 5.9mm)