Battery Charging - Quick SBC 250 Manual Del Usuario

Once the equipment has been wired up, switch on the supply.
When power is delivered, all the indicator lights on the front control panel will come on.
The battery changer will then switch over to the charge mode as required.
The battery charger provides a IUoU charge. The SBC chargers can also be used as power supplies, i.e. when the
batteries are disconnected.
It is advisable to use this operating mode only when necessary.
In any case, avoid connecting high inductive loads (i.e. high powered motors) with the batteries disconnected as
this may cause, even if rare, severe damage.

BATTERY CHARGING

The batteries are charged in three stages:
Constant-current stage. The batteries need more current than that supplied by the
battery charger. The current is limited to the maximum output rating.
BULK
The charger may come into this stage during the switching on, when the batteries are flat or
high loads are connected.
Constant-voltage stage. The charger charges the batteries at a constant voltage of
14.2 V (28.4V for the 24V models) providing the currents needed. The need of the current to
ABSORPTION
the battery will trend downwards with the time going. When the output current will be less
than 18% of the maximum output rated current, the equipment will turn to FLOAT.
Maintaintenance state of charging. The charger charges the batteries at a constant
voltage of 13.4V (26.8V for the 24V models). During this stage, the batteries, when fully
charged, will tend to absorb currents of nearly zero ampere.
FLOAT
This allows the charger to maintain the batteries charged at all times without overloads.
Turn from FLOAT to ABSORPTION takes place when the currents required exceed the
maximum output rating of the charger by 18%.
(V)
14.2 (28.4)
13.4 (26.8)
(I)
Imax
18% Imax
BULK ABSORPTION FLOAT NEW CYCLE
OPERATION
TIME
TIME
13