Victron energy BLUE POWER EasyPlus 12 Manuel page 8

2.2 Battery Charger
Adaptive 4-stage charge characteristic: bulk – absorption – float – storage
The EasyPlus features a microprocessor controlled 'adaptive' battery management system that can
be preset to suit different types of batteries. The 'adaptive' feature will automatically optimize 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
If, in order to quickly charge a battery, a high charge current in combination with a high absorption
voltage has been chosen, the EasyPlus will prevent damage due to excessive gassing by automatically
limiting the rate of voltage increase once the gassing voltage has been reached.
Less maintenance and aging when the battery is not in use: the Storage mode
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 a 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.
Two outputs to charge 2 battery banks
The EasyPlus features 2 outputs, of which 1 can carry the full output current. The second output,
limited to approximately 4 A and with a slightly lower output voltage, is intended to top up a starter
battery.
To increase battery life: temperature compensation
Every EasyPlus 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.
Learn more about batteries and battery charging
To learn more about batteries and charging batteries, please refer to our book 'Electricity on Board'
(available free of charge from Victron Energy and downloadable from www.victronenergy.com). For
more information about adaptive charging please look under Technical Briefs on our website.
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