Phoenix Charger 24/16 (2)

Adaptive four-stage charging characteristic: constant current ("bulk") phase, constant voltage ("absorption")
phase, float voltage ("float") phase, storage voltage ("storage") phase

The microprocessor-controlled 'adaptive' battery management system of the Phoenix charger can be adapted to the
different battery types. 'Adaptive' means that the charging characteristic is automatically
adapted to the type of battery utilisation.

The right amount of charge: adapted constant voltage time

In the case of low battery discharge (e.g. a yacht connected to shore power), a short constant
voltage phase is selected to prevent overcharging. After a deep discharge, the constant
voltage phase is automatically extended to ensure that the battery is fully charged.

Preventing damage due to excessive gassing: the battery protection mode

In order to shorten the charging time, the highest possible charging current was selected together with a high constant
voltage. However, to prevent excessive gassing towards the end of the
constant current phase, the Phoenix charger limits the speed of the voltage increase after the
gassing voltage has been reached.

Less maintenance and ageing when the battery is at rest: storage mode

Storage mode is always activated if no discharge has taken place within 24 hours.
In storage mode, the charge retention voltage is then reduced to 2.2 V/cell (13.2 V for a 12 V battery)
to minimise gassing and corrosion on the positive plates. Once a week
the voltage is increased to the level of the gassing voltage. This achieves a kind of equalising charge,
which prevents electrolyte stratification and sulphation - the two main causes of premature battery failure -
.

To extend the service life of the battery: temperature compensation

A temperature sensor is supplied with every Phoenix charger. The temperature sensor ensures that the charging voltage
decreases as the battery temperature rises. This is particularly important for gel batteries
or when constantly high temperature fluctuations are expected.

Battery voltage sensor

To compensate for voltage losses due to cable resistance, the Phoenix charger has a
voltage sensor in the charging circuit so that the battery always receives the correct charging current.

Universal 90-265 V AC input voltage range, also suitable for direct current supply (AC-DC

and DC-DC operation).

The chargers accept a 90-400 V DC supply.

Computer interface

Each Phoenix charger can exchange information with a computer via its RS-485 data port.
Together with our VEConfigure software, which can be downloaded free of charge from our website www.victronenergy.com
, and with the Data Link MK3-USB (see accessories), all
parameters of the charger can be customised.

Further information about batteries and charging batteries can be found in our book 'Energy

Unlimited (Unlimited Energy)