BAC1205N/BAC2403N Battery Charger User Manual
BAC1205N/BAC2403N Battery Charger Version 1.0 2018-04-21 Page 4 of 7
1. OVERVIEW
BAC1205N/2403N battery charger, adopts the latest switch power components, is specially designed
for charging lead-acid starting battery according to its property. This charger is suitable for lead-acid
battery long-term supplementary charge (float charge).
2. PERFORMANCE AND CHARACTERISTICS
Product with the following characteristics,
— Designed in switching power structure, wide range of AC voltage input, small volume, light weight
and high efficiency;
— Two-stage charging method (constant current firstly and then constant voltage), fully considering
charging property of the lead-acid battery, can avoid overcharging and extent extend the battery life
to the fullest;
— With short circuit and reverse connection protection;
— Suitable for charging 12V or 24V batteries with corresponding model BAC1205N or BAC2403N;
— LED display: charging indication and full charged indication;
— Easy installation: guide-rail way installation, screw mounting installation;
— Built-in terminals, flame retardant plastic shell.
3. CHARGING PRINCIPLE
Fig.1
– Charging Curve
According to charging property of the lead-acid battery, BAC1205N_BAC2403N battery charger uses
2-
stage charging method and charge mode is ―constant-current‖. When battery voltage is under the
threshold, it is charging in constant-current mode; when the battery voltage is higher than the threshold
，
the charging current is decreasing as the battery voltage is rising until it reaches the set voltage, and
then charge mode is turned into ―float charge‖. Charge current is gradually reducing and battery voltage
is rising up to the set value. When charging current is lower than 0.3A, the battery is basically fully
charged (charging indicator eliminates). Afterwards, charging current will offset self-discharge of the
battery. Thus the charger can maintain a full charged condition and extend the battery life
.
