Kisae Abso Charger 12V 100A, Owner'S Manual

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Page 9
Understanding the Multi-Stage Charging Process:
The charger is a fully automatic
“
set-and-forget
” design. It is designed to quickly and accurately
recharge deep cycle batteries utilizing charger algorithms that help to maximize the life of specialized
deep cycle batteries.
The charger features a multistage smart charging technology that enables the charger to be
connected to the battery banks permanently.
As dictated by battery manufacturer
’s recommendations, deep cycle batteries require a multi-stage
charge sequence for perfect, fast and accurate charging. This charger delivers four primary charge
stages (Bulk Charge, Absorption Charge, Float, and Maintenance).
Typical charging profile of the charger
•
Bulk Charge
‘bUL’
: The battery is charged at a full rated output current of the charger until the
battery reaches the final charging voltage, known as its absorption voltage. In this step, around
80% of the battery is recovered as fast as possible. During the Bulk charge stage, an 8-hour timer
is started when the battery voltage reaches approximately 13.5V. This timer is set to avoid battery
overcharging. The charger will override the Absorption to Float stage condition and goes to Float
stage when it times out.
•
Absorption Charge
‘AbS’
: With the charger voltage held steady, the remaining 20% is replaced
with the charger allowing the current to drop as the battery approaches its full charge. There is a
4 hour time limit on Absorption stage to avoid battery overcharging. The timer will override the
Absorption to Float stage condition and goes to Float stage when it times out.
•
Float Stage
‘FLo’
: Finally, in the float 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 the charger to be used as a DC power supply.
•
Maintenance : This is a regular timed recharge (or return to the bulk stage). The charger switches
from float stage to bulk charge after 7 days of constant operation to ensure the battery banks
remain active.