User Manual

Multistage Charging Process
The ePOWER Battery Charger is a fully automatic, set and forget charger.
It is designed to quickly and accurately recharge your deep cycle
batteries utilising charger algorithms that help to maximise the life of
your specialised deep cycle batteries.
All ePOWER Battery Chargers feature multistage smart charging
technology that enables the charger to be connected to your battery
banks permanently.
The ePOWER Battery Charger utilise high frequency power switching
circuits to convert the normal mains 240 volts AC (via either shore or
generator power), to the required low voltage DC required to charge
the batteries.
As dictated by battery manufacturer’s recommendations, deep cycle
batteries require a multistage charge sequence for perfect, fast and
accurate charging. Enerdrive multistage smart chargers delivers four
primary charge stages.
Stage 1 – Bulk or Boost charge; The battery is charged at full rated
output current of the charger until the battery reaches its nal charging
voltage, known as its absorption voltage. In this step, around 80% of the
battery is recovered as fast as possible.
Stage 2 – Absorption Charge; With the charger voltage held steady,
the remaining 20% is replaced with the charger allowing the current to
taper o as the battery approaches its full charge.
Stage 3 – Float; Finally, in the oat stage the charger voltage is lowered
and held at a constant and safe predetermined level. This prevents
the battery from being overcharged, yet allows the charger to supply
enough current to make up for the self discharge losses of the battery,
while supporting any additional loads connected to the battery (such
as DC lighting and refrigerators). This stage allows for the charger to be
used as a DC power supply.
Page 11www.enerdrive.com.au