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.
With boat owners in mind this adaptive 5-step charger can provide either 30A or 50A of charge to each of three battery banks. Or the Phoenix
1+1 model provides 3A to the starter-battery, the rest to the ‘house’ bank. 24V models are available with 16A/25A charge. Bluetooth enabled,
you can monitor the charger and set alarms straight from your phone.
For voltage and temperature compensated charging order a wireless Smart Battery Sense.
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 minimize
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 90-265 V AC input voltage range and also suitable for DC supply
(AC-DC and DC-DC operation)
The chargers will accept a 90-400 V DC supply.
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 Victron's website
www.victronenergy.com and the data link MK3-USB (see accessories), all parameters of the chargers
can be customised.
Learn more about batteries and battery charging
To learn more about batteries and charging batteries, please refer to Victron's book ‘Energy Unlimited’