Manual

5. UNIT OPERATION
Understanding The Charging Mechanism
• The ePOWER battery charger is a three bank battery charger that is
capable of charging a maximum of three battery banks.
• The charger is designed to have Bank 1 charge the main battery
bank. Always use Bank 1 rst when connected to a single battery
bank.
• At start, if the charger senses Bank 2 and 3 has battery voltage above
12V, the charger will then concentrate on fully charging Bank 1 rst
until it reaches oat stage. It will then switch to charge Bank 2 and 3.
OR
• At start, if the charger senses either Bank 2 or Bank 3 have voltage
below 12V, it will cycle to charge Bank 1 for 15 minutes then Bank 2
and 3 together for 15 minutes. When the charger senses both Bank
2 and 3 reached 13V, it will then concentrate on charging Bank 1
until it reaches the oat stage. After, it will then concentrate on
recharging Bank 2 and 3 to oat stage.
• Once all three banks have reached the oat stage, the charger will
adjust the charger voltage to the preset oat voltage and all three
banks will be connected in parallel with a diode for bank separation.
• In oat stage, see the below chart for the maximum allowable
current draw:
Model EN31220 EN31240 EN31260 EN32430
Maximum Float Current 20A 40A 40A 30A
For Charging GEL, AGM And Flooded Batteries
The charger can be set to Mode 2 - 2 stage charging (Bulk and Absorption
stage charging only) or Mode 3 – a 3 stage charging – (Bulk, Absorption
and Float stage charging).
Each battery bank can have its own maximum charging current and
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