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, including a dedicated lithium-ion charging algorithm.
The wide universal input voltage range increases installation flexibility, and 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 marine, mobile and industrial applications and withstands harsh environmental conditions: heat, moisture and salt air.

Skylla-IP65 (1+1): two outputs for charging two battery banks
The Skylla-IP65 (1+1) has 2 separate outputs. The second output is designed for charging the starter battery. As a result, 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 enclosure and splash-proof. Withstands the challenges of harsh environments: heat, moisture and salt-laden air. An acrylic coating provides the best possible protection for the circuit boards against corrosion. Temperature sensors ensure that the power components are always operated within the specified limits. Under extreme environmental conditions, the output current is automatically reduced if necessary.

LCD display
For status monitoring and easy adjustment of the charging algorithms to a specific battery and its operating conditions. CAN-Bus interface (NMEA2000) For connection to a CAN-Bus network, a Skylla-i control panel or a 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 amount for a lead-acid battery: adjusted constant voltage time
If only minor discharges occur, the constant voltage time is kept short to prevent overcharging the battery. After a deep discharge, the constant voltage phase is automatically extended to ensure that the battery charges completely.

Prevention of damage from excessive gassing:
BatterySafe mode To reduce charging time, the highest possible charging current is combined with a high constant voltage. However, to prevent excessive gassing at the end of the constant current phase, the Skylla-IP65 limits the rate of voltage increase once the gassing voltage has been reached.

Less maintenance and aging when the battery is in storage:
Storage mode The storage mode is activated whenever no discharge has occurred within 24 hours. In storage mode, the float voltage is reduced to 2.2 V/cell (26.4 V for a 24 V battery) to minimize gassing and corrosion of the positive plates. Once a week, the voltage is increased back to the constant voltage threshold to 'refresh' the battery. This achieves a kind of equalization charge that prevents electrolyte stratification and sulfation—the two main causes of premature battery failure. Longer battery life through temperature compensation Each Skylla-IP65 device comes with a battery temperature sensor. 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 drops 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 supply
Thanks to its excellent control circuit, the Skylla-IP65 can be used as a power supply 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 added by connecting a relay or an open-collector optocoupler output from a Li-Ion BMS to the charger's remote control connection. Alternatively, voltage and current can be fully controlled by establishing a connection to the CAN-Bus port.