Victron Skylla-i 24V Smart Battery Charger - 80A / 100A

The Victron Skylla-i is a modern, powerful, and intelligent professional battery charger designed for demanding marine, industrial, and off-grid applications requiring high-current 24V battery charging. Available in four configurations — 24/80 (1+1), 24/80 (3), 24/100 (1+1), and 24/100 (3) — all models feature a seven-stage adaptive charging algorithm, CAN-bus (VE.Can / NMEA 2000) communication, PowerControl, Li-ion (LiFePO₄) readiness, and a robust aluminium enclosure rated for heat, humidity, and salt air environments.

The (1+1) output configuration provides a full-rated main charge output — 80A or 100A — plus a dedicated 4A trickle charge output for simultaneously maintaining a separate starter battery at full charge. The (3) output configuration provides three fully isolated outputs, each capable of delivering the full rated charge current — with the maximum combined output current capped at 80A or 100A total, distributed across all three banks based on battery demand. Both output configurations use the same high-quality aluminium enclosure and share identical input and charge voltage specifications.

CAN-bus (VE.Can / NMEA 2000) connectivity via two RJ45 sockets enables synchronised parallel operation of multiple Skylla-i chargers — with combined output current and PowerControl managed as a single charger group. A mix of 80A and 100A models can be paralleled together. The optional Skylla-i Control GX remote panel connects via VE.Can for remote monitoring of charge phase LEDs and adjustment of the AC input current limit. Integration with Victron GX devices enables full VRM remote monitoring and control.

The seven-stage adaptive algorithm (Bulk, BatterySafe, Absorption, Timed Absorption, Float, Storage, and optional Equalisation) adjusts absorption time based on battery discharge depth — keeping it short after shallow discharges and extending it after deep discharges. BatterySafe mode limits voltage rise rate to prevent excessive gassing when high absorption voltages are set. Storage mode reduces float voltage after one day without a discharge event to minimise corrosion and gassing during inactivity.

Features

Seven-Stage Adaptive Charging Algorithm

The full seven-stage algorithm — Bulk, BatterySafe, Absorption, Timed Absorption, Float, Storage, and optional Equalisation — automatically optimises every charge cycle. Variable absorption time adjusts based on actual battery discharge depth, and BatterySafe mode limits the rate of voltage rise to prevent excessive gassing when high absorption voltages are used.

(1+1) and (3 Output) Configurations

The (1+1) variant provides a full-rated main output (80A or 100A) plus a dedicated 4A trickle charge output for simultaneously maintaining a separate starter or auxiliary battery. The (3) variant provides three fully isolated outputs each capable of full rated current — with maximum combined output capped at 80A or 100A total across all three banks.

CAN-bus (VE.Can / NMEA 2000) — Synchronised Parallel Operation

Two RJ45 VE.Can sockets enable multiple Skylla-i chargers to be paralleled and synchronised — managing combined output and PowerControl as a single group. A mix of 80A and 100A models can be paralleled. Also enables connection to the Skylla-i Control GX remote panel and Victron GX devices for VRM remote monitoring.

PowerControl — Shore Power Management

A maximum AC input current limit can be set via the Skylla-i Control GX or CAN-bus — automatically reducing charge current as needed to prevent the shore supply or generator from being overloaded, enabling smaller supplies to power both loads and battery charging simultaneously.

Li-ion (LiFePO₄) Ready

A dedicated LiFePO₄ charge algorithm (DS-2 DIP switch enabled) with specific absorption voltage (28.4V), no float, and automatic relay output for BMS on/off control enables safe and correct charging of lithium iron phosphate batteries without additional configuration hardware.

Storage Mode — Reduces Maintenance and Ageing

After 24 hours without a discharge event, the charger automatically reduces float voltage to 26.4V to minimise plate corrosion and electrolyte gassing during long-term inactivity — extending battery service life in seasonal and occasional-use installations.

PowerControl via Shore Current Limit

A maximum AC input current limit can be set via the Skylla-i Control GX remote panel or by the CAN-bus — protecting shore power connections and small generators from overload by automatically reducing charge current as other AC loads increase.

Robust Marine-Grade Aluminium Enclosure

The aluminium epoxy powder-coated enclosure with drip protection and stainless steel brackets withstands heat, humidity, and salt air in demanding marine and industrial environments. Circuit boards are acrylic coated for maximum corrosion resistance and long-term reliability.

Specifications

Datasheets and Manuals

Datasheet

Product Manual