BACM2420 Battery Charger User Manual
BACM2420 Battery Charger Version 1.3 2019-07-08 Page 4 of 13
1 OVERVIEW
BACM2420 battery charger is an intelligent and multi-function charger, which is specially
designed to meet the charging characteristics of the lead-acid engine starter batteries. It is suitable for
24V or 12V battery pack and the maximum output current is 20A.
2 PERFORMANCE AND CHARACTERISTICS
It has the following characteristics:
1) Switch power supply structure, wide AC voltage input range, small size, light weight, high
efficiency;
2) Users can select automatic two-stage charging process or automatic three-stage charging
process according to needs. Both two charging processes are carried out according to storage
battery charging characteristics, which can prevent overcharging and significantly prolong battery
lifetime;
3) Built-in PFC circuit, which allows to calibrate the power factor up to 0.99;
4) Battery voltage detection ports, which can detect the battery voltage at real time.
5) Battery low voltage output port; it will output low level immediately after the battery voltage has
fallen below the set value after preset delay.
6) Temperature sensor port, which allows monitoring the battery temperature at real time; and
temperature compensation function, which can prevent too high battery temperature effectively;
7) Mains failure alarm port; It will output low level when the AC input is interrupted;
8) Standard RS485 serial communication port.
9) Default suitable for 24V battery pack; it can be changed to 12V battery pack by changing
configuration information; rated charging current is 20A;
10) External LED status display: Full charged indication (Green light) and charging indication (Red
light).