Victron Energy ● Phoenix Series Victron Phoenix Charger 24V/25A (2+1) Adaptive 4-Stage Charging | Multi-Output | Marine & Off-Grid Ready The Victron Phoenix Charger 24V/25A (2+1) is a robust and intelligent battery charger designed for a wide range of applications, including marine, automotive, and off-grid systems. This model features an adaptive 4-stage charge characteristic (Bulk, Absorption, Float, Storage) to ensure optimal battery health and extended lifespan. Its microprocessor-controlled system automatically optimises the charging process based on battery usage patterns. Equipped with three isolated outputs, this Phoenix charger can efficiently charge two main battery banks with full current and provide a trickle charge to a third, typically a starter battery. The universal input voltage range allows for flexible operation from both AC and DC sources, making it a versatile solution for various power setups. System Compatibility: Designed for 24V battery systems. Verify battery type and capacity before purchase. Key Features ▶ Adaptive 4-Stage Charging — Optimises charge cycles for different battery types and usage, enhancing battery life. ▶ Multi-Output Design (2+1) — Provides full current to two main battery banks and a trickle charge to a third, such as a starter battery. ▶ Variable Absorption Time — Prevents overcharging during shallow discharges and ensures full recharge after deep discharges. ▶ BatterySafe Mode — Automatically limits voltage increase to prevent excessive gassing and potential battery damage. ▶ Storage Mode — Reduces float voltage when batteries are idle, minimising gassing and corrosion, with weekly equalisation. ▶ Temperature Compensation — Includes a battery temperature sensor to automatically adjust charge voltage for optimal performance and safety. ▶ Battery Voltage Sense — Compensates for voltage loss in cables, ensuring the battery receives the precise charge voltage. ▶ Universal Input Voltage — Accepts 90-265V AC and 90-400V DC, offering broad compatibility for various power sources. ▶ Computer Interface (RS-485) — Allows customisation of parameters via VEConfigure software and integration into monitoring systems. Technical Specifications Parameter Value Product Model Phoenix Charger 24V/25A (2+1) SKU 792-PCH024025001 Nominal Battery Voltage 24V Total Charge Current 25A Number of Outputs 3 (2 full current, 1 trickle) Input Voltage Range (AC) 90-265V AC Input Voltage Range (DC) 90-400V DC Charge Algorithm Adaptive 4-stage (Bulk, Absorption, Float, Storage) Communication Port RS-485 (VEConfigure compatible) Certifications CE Charging & Output Modes Mode Description Bulk Applies maximum current to rapidly charge the battery until voltage reaches the absorption level. Absorption Maintains a constant voltage to fully charge the battery, with variable time based on discharge depth. Float Reduces voltage to a lower level to maintain a fully charged battery without overcharging. Storage Further reduces float voltage during periods of inactivity to minimise gassing and corrosion, with weekly equalisation. (2+1) Outputs Two full-current outputs for primary service batteries and one 4A trickle charge output for a starter battery. Typical Applications Application Description Marine Vessels Ideal for yachts, boats, and other marine craft, providing reliable charging for service and starter batteries. Recreational Vehicles (RVs) Suitable for motorhomes and caravans, ensuring leisure batteries are maintained while on hook-up or generator power. Off-Grid Systems Can be integrated into solar or wind power systems to manage battery charging from AC generators or other DC sources. Backup Power Systems Maintains batteries in standby power applications, ready for use during mains failures. Built-In Protection Functions The Victron Phoenix Charger is equipped with several safety features to protect both the charger and the connected batteries. These include protection against output short circuits, battery reverse polarity (via fuse), and over-temperature conditions. Its robust design ensures reliable operation in demanding environments, contributing to the longevity of your battery system. Common Questions What does the "(2+1)" in the product name signify? The "(2+1)" indicates that the charger has three isolated outputs. Two outputs provide the full charge current for your main service battery banks, while the third output delivers a lower trickle charge (typically 4A) suitable for maintaining a starter battery. Can this charger be used with different battery types? Yes, the Victron Phoenix Charger features an adaptive 4-stage charge characteristic that can be preset to suit various battery types, including lead-acid (flooded, GEL, AGM) and certain lithium-ion batteries. Always refer to your battery manufacturer's specifications for optimal charging parameters. Is the charger suitable for marine environments? Absolutely. The Phoenix Charger is designed with features like temperature compensation and a robust universal input voltage range, making it highly suitable for the fluctuating conditions often found in marine applications. Its multi-output capability is also ideal for managing multiple battery banks on boats. What is the purpose of the Storage Mode? The Storage Mode activates when the battery has not been discharged for 24 hours. It reduces the float voltage to minimise gassing and corrosion of the positive plates, which helps to prevent premature battery aging. Once a week, the voltage is raised back to the absorption level for equalisation, preventing electrolyte stratification and sulphation. Installation Notes Ensure the charger is installed in a well-ventilated area, away from direct sunlight or heat sources, to prevent overheating. All wiring should be carried out by a qualified professional in accordance with local electrical regulations and the manufacturer's manual. Verify correct polarity when connecting to batteries to prevent damage to the charger and battery system. Mount the charger securely on a stable surface, ensuring adequate clearance for air circulation around the unit. Utilise the battery temperature sensor for optimal charging performance, especially in environments with significant temperature fluctuations. Before You Buy Confirm your battery system voltage is 24V to ensure compatibility with this charger. Check the total current requirements of your battery bank(s) to ensure the 25A output is sufficient for your needs. Review your battery manufacturer's charging specifications to ensure they align with the adaptive 4-stage algorithm. Consider if the multi-output (2+1) configuration meets your specific requirements for charging multiple battery banks. If integrating into a larger system, ensure compatibility with existing Victron Energy components or other monitoring systems via the RS-485 port. Always verify product specifications and compatibility with your specific system requirements before purchase. Professional installation is recommended.
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