Enerdrive DOMETIC EN312100, Owner'S Manual

Page: 9 / 44

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3. UNDERSTANDING THE UNIT
The Enerdrive Battery Charger is a fully automatic multistage battery charger with the ability to charge
three separate battery banks.
When first connected to an AC power source, the charger will check all three battery banks before
charging commences. The Battery Charger operates on an isolated charging design where battery bank
one is separate from battery bank two and three. Battery bank one is the priority battery bank in the
charging sequence and must be connected to the primary house (or main) battery bank. Battery bank
one can be programmed with a different charge algorithm over banks two and three.
Battery bank two and three are connected in parallel internally (with a separation diode) and share a
common charge algorithm.
During normal operation the Battery Charger will do a full charge cycle to float stage on battery bank one
with battery types set to either GEL, AGM, FLOODED or LITHIUM (see Lithium section for limitations of
use). Once float stage is reached the charger transitions to charge banks two and three together with a
bulk / absorption mode (battery banks two and three can be set to either GEL, AGM or FLOODED). The
EN312100 allows for Lithium Batteries to be charged from all three outputs.
On completion all three battery banks move to float stage with a shared battery voltage determined by
bank one settings. This setting allows the charger to remain permanently connected to mains if required.
CAUTION
Battery bank one should ONLY be connected to the main battery bank that requires charge priority.
On single battery bank installations DO NOT use bank two and three charger outlets.