Victron Phoenix 24 Volt 25 Amp Battery Charger
Adaptive 4-stage charge characteristic
Bulk – absorption – float – storage The Phoenix charger features a microprocessor controlled ‘adaptive’ battery management system that can be preset to suit different types of batteries. The ‘adaptive’ feature will automatically optimise the process relative to the way the battery is being used.
The right amount of charge
Variable absorption time When only shallow discharges occur (a yacht connected to shore power for example) 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 (see fig. 2 below) If, in order to quickly charge a battery, a high charge current in combination with a high absorption voltage has been chosen, the Phoenix charger will prevent damage due to excessive gassing by automatically limiting the rate of voltage increase once the gassing voltage has been reached (see the charge curve between 14,4 V and 15,0 V in fig. 2 below).
Less maintenance and aging when the battery is not in use
The Storage mode (see fig. 1 & 2 below) 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 (13,2 V for 12 V battery) to minimise gassing and corrosion of the positive plates. Once a week the voltage is raised back to the absorption level to ‘equalize’ 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 Phoenix charger comes with a battery temperature sensor. When connected, charge voltage will automatically decrease with increasing battery temperature. This feature is especially recommended for sealed 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, Phoenix chargers are provided with a voltage sense facility so that the battery always receives the correct charge voltage.
Universal 90-265V AC input voltage range and also suitable for DC supply (AC-DC and DC-DC operation) The chargers will accept a 90-400V DC supply.
Computer interface
Every Phoenix Charger is ready to communicate with a computer through its RS-485 data port. Together with our VEConfigure software, which can be downloaded free of charge from our website www.victronenergy.com and the data link MK1b (see accessories), all parameters of the chargers can be customised. The chargers can also be connected to VENet, the new power control network of Victron Energy, or to other computerised monitoring and control systems.
