Battery charger:
Product Features:
1. This charger uses intelligent control and management of the charging process of the battery.Automatically switch charging mode until the battery is fully charged.
2. Efficient three-stage (constant current, constant voltage, floating charge) pulse width modulation (PWM) charging method (see the figure below).
Constant current mode: The charger charges the battery with a maximum current of 10~50A and charges the charging process with a voltage of 14.6V.
Constant voltage mode: When the charging voltage is 14.6V, the charging current is 10~50A>I≥2A charging process.Battery capacity 95%
Floating charging mode: When the charging current I < 2A, the voltage is at 13.7V.
Charging curve

3. It has functions such as online battery detection, short circuit protection and reverse connection protection.
Online battery detection means that when the mains power is not connected, the battery is directly clamped with a clip. The indicator light turns green. The battery is normal. If it is not lighted, there is a problem that needs to be detected.
Short circuit protection means that the output end will not damage the charger when the charger is short-circuited.
Reverse connection protection means that the positive and negative electrodes of the output terminal are connected to the positive and negative electrodes of the battery and will not damage the charger, and the buzzer will alarm.
4. Intelligently control the cooling fan to greatly extend the life of the charger.
5. The detailed charging indicator light and current value indicator table intuitively reflect the charging process, making it easier for users to quickly understand the current charging status of the battery.
Product Specifications:
brand | BELTTT |
model | BELC20A |
Rating input voltage | AC 100~260V |
Rated charging voltage | DC 12V |
Hengliu charging current | 10~50A |
Constant voltage charging voltage | 14.6V |
Floating charging voltage | 13.7V |
Full load efficiency | 85% |
Rated frequency | 50/60Hz |
temperature range | -20 ~+60 ℃ |
Battery charging range | 60~200AH |
product instructions:



1, Things to note when charging
1.1. Check whether the output voltage of the charger, the rated voltage of the battery and the mains voltage are consistent.
1.2. Connect the charger and the battery correctly as required.
1.3. Connect the power supply to observe whether the indicator light is on. If the indicator light does not light, please disconnect the power supply immediately and check the power supply, battery and all connections.
1.4. After full charge, please disconnect the mains first and then disconnect the battery connection cable.
2, charging steps
2.1. First connect the positive and negative poles of the battery at both ends of the output power cord of the charger. The charging indicator light turns green, which means the connection is correct. Otherwise, there is a problem with charging. Please check according to the actual situation.
2.2. Connect the mains plug to the mains socket, and the indicator light will show red. At this time, the charger will enter the charging state.
2.3. The charging indicator light changes from red to green, indicating that the battery has been charged to 95%. If you want to achieve the best performance of the battery, please keep it in this state for 2 to 3 hours before charging is finished.
2.4. After full charge, please disconnect the mains first and then disconnect the battery connection cable.
Summarize
The main features of this charger
1. Three-stage intelligent fast charging.
2. It has functions such as online battery detection, short circuit protection and reverse connection protection.
3. Intelligently control the cooling fan.
4. Detailed charging indicator light and current indicator
5. The circuit board is a double-panel.
6. Applicable battery range is 60AH to 200AH.






