Projecta AC040 Manual page 3

8-STAGE AUTOMATIC CHARGING
The AC040 and AC080 are fully automatic battery chargers with 8 charge stages.
Automatic charging protects your battery from being overcharged so you can leave the
charger connected to the battery indefinitely.
8-stage charging is a sophisticated charging technique that gives your battery longer life and
better performance compared to using traditional chargers.
Projecta's CHARGE N' MAINTAIN chargers are suitable for most 12V automotive, marine
and deep cycle batteries. (AC040 also suits 6V batteries).
The 8 charge stages are:
Battery Rescue, Soft Pulse, Pulse Charge, Soft Start, Bulk, Absorption, Battery Test and Float.
BATTERY RESCUE
Applies a high voltage to break down the Lead Sulfate build up in heavily sulfated batteries.
SOFT PULSE
Pulses a small current as the battery is starting to take charge.
PULSE CHARGE
Increases the pulse current as the battery is starting to take charge.
SOFT START
This is a preliminary charge process that gently introduces power to the battery, protecting
the battery and increasing battery life.
BULK (CONSTANT CURRENT)
The Bulk stage reduces charging time by charging the battery at the maximum rate (constant
current) to a set voltage, at which point the battery is approximately 80% charged.
ABSORPTION (CONSTANT VOLTAGE)
The absorption stage charges the battery to 100% by adjusting the charge rate allowing the
battery to absorb more power.
BATTERY TEST
The analysis mode tests the battery to ensure that it has taken the charge; if the battery
passes the test the charger will proceed to the float stage.
FLOAT
The Float stage maintains the battery at 100% charge without overcharging or damaging
the battery. This means the charger can be left connected to the battery indefinitely.
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