User Manual

3. PRODUCT DESCRIPTION
The Enerdrive ePOWER DC2DC 24V Battery Charger is a multistage, multi-input battery
charger to charge dierent types of batteries commonly installed in either boat’s, caravan’s,
4WD’s or commercial vehicle’s.
Enerdrive’s ePOWER DC2DC 24V Battery Charger package includes the following items;
1 x ePOWER DC2DC 24V Battery
Charger
1 x Battery Temperature Sensor
7.5 Meter Cable)
1 x Owner’s manual
Owner’s Manual
(DC2DC 24V Rev. 1.0)
4. UNDERSTANDING THE UNIT
The Enerdrive ePOWER DC2DC 24V Battery Charger is a fully automatic multistage, multi
input battery charger with the ability to charge from either an alternator linked to a battery;
or via solar power with the in built Maximum Power Point Tracking (MPPT) Solar Controller.
With two inputs available, the house battery will be charged from either the engine while
underway, or via the solar panels when stationary. The process to choose either engine or
solar is fully automatic and both functions are controlled from within the unit itself without
the need for external relays.
During normal operation the ePOWER DC2DC 24V Battery Charger will do a full charge cycle
to oat stage on the house battery bank with ability to choose either GEL, AGM, Flooded,
Custom Programmable or Lithium. Once oat stage is reached the charger transitions to a
power supply mode to support on-board DC loads.
Multistage Charging Process - GEL, AGM, Flooded & Program Modes
The ePOWER DC2DC 24V 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.
The ePOWER DC2DC 24V Battery Charger features multistage smart charging technology that
enables the charger to be connected to your battery banks permanently. With the input of
multiple sources, you can be assured of charging your batteries whenever underway; or when
the sun is shining on your solar array.
As dictated by battery manufacturer’s recommendations, deep cycle batteries require a
multistage charge sequence for perfect, fast and accurate charging. The Enerdrive ePOWER
DC2DC 24V smart charger delivers three primary charge stages.
Stage 1 – Bulk or Boost charge; The battery is charged up to the 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 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 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.
Lithium Charging Process
The ePOWER DC2DC 24V charger has a specic charging prole for Lithium batteries. It has
its own charging voltage and current settings that needs to be set by the user. It also requires
the user to set the charger termination current (“L“ setting). Once the user dened charge
voltage is reached, the charger will start reducing the current output and the charging process
will terminate when the charging current drops to the set termination current. This can take
anywhere between 3 to 15 minutes. The unit will then act as a power supply to support
Enerdrive ePOWER DC2DC 24V Battery Charger Owners Manual (Rev. 1.5) www.enerdrive.com.auPage 8 Page 9