01.

Pre-operation Instructions

The charger is equipped with an internal DSP and an MCU. Both trigger protection actions according to the operating conditions of the charger. A fast-flashing red LED indicates protection triggered by DSP, while a medium-speed flashing red LED indicates protection triggered by MCU.

Mains Over-Voltage Protection: When the charger detects that the mains voltage exceeds the protection threshold, the charger will shut down its output. It will automatically resume normal operation once the mains voltage returns to normal.

Mains Under-Voltage Protection: When the charger detects that the mains voltage drops below the protection threshold, the charger will shut down its output. It will automatically resume normal operation once the mains voltage returns to normal.

02.

Pre-operation Instructions

Bus Over-Voltage Protection: When the charger detects that the internal bus voltage exceeds the protection threshold, the charger will shut down its output. It will automatically resume normal operation once the voltage returns to normal.

Primary Over-Current Protection: When the charger detects that the primary-side current exceeds the protection threshold, the charger will shut down its output and can automatically resume normal operation.

Self-Test Protection: The charger performs self-test immediately after power-on to verify the mains input frequency and the status of various internal components. Protection will be automatically cleared when all parameters are normal and stable.

On board charger
Waterproof charger

Suitable for charging lead-acid batteries (flooded, gel and AGM) or lithium batteries (LiFePO₄, Li-MnO₂, NMC)
Adopts automatic multi-stage charging profile to help extend battery service life
Built-in charging protections: over-temperature / over-voltage / over-current / short-circuit / reverse polarity protection
LED indicators show real-time operating status
Adopts APFC + full-bridge LLC circuit topology, stable, high efficiency and energy-saving
MCU control and pulse frequency modulation (PFM) technology. High efficiency, good stability and low power consumption, meeting charging profile requirements of different batteries.

Item			vb7235
Output	Output volt(V)	b=F	87.6
		b=M	84.0
		b=A	88.2
	Float volt(V)(only b=A)		82.8
	Recharge Voltage(V)	b=F	75.6
		b=M	78
	Voltage Fluctuation(V)		±0.3
	220V AC	Max current(A)	35
		Customizable Current(A)	≤35
		Max. Power(W)	3087
	110V AC	Max current(A)	15
		Customizable Current(A)	≤15
		Max. Power(W)	1323
	Charge complete current (A)	b=F	2.8
		b=M	2.8
		b=A	8.8
	Current error		±5%
	Ripple voltage		≤2%VOUTMAX
Input	Voltage Range		v=W,100V~240VAC;v=H,200~240Vac;v=L,100~120Vac
	Frequency range		47~63Hz
	Power Factor		PF>0.98/115VAC, PF≥0.99/230VAC at full load
	Full-load Input Efficiency		≥91.2%/115VAC,≥93.5%/230VAC
	Input current(type)		v=W：15A
	Vomit (type)		COLD START≤50A at 230VAC
	Leakage Current		＜0.75mA

Storage Conditions

The charger shall withstand the following environmental conditions for a long term without electrical or mechanical damage and consequent operational failure.

Ambient temperature: -40℃ ~ +70℃ Relative humidity: 0% ~ 95% Maximum altitude: 20,000 m

Charging Protection Characteristics

Output Over-Voltage Protection: When the voltage at the charger output reaches the protection threshold, the internal relay will open to disconnect the output circuit. Normal operation will automatically resume after the fault is cleared.

Output Over-Current Protection: When the charger output current exceeds 120% of the maximum charging current, the charger activates over-current protection. The internal relay opens to disconnect the output circuit. Normal operation will automatically resume after the fault is cleared.

Short-Circuit Protection: If the positive and negative terminals of the charger output are shorted, the internal relay will open to disconnect the output circuit. Auto-recovery is available after fault removal.

Reverse Polarity Protection: When the positive/negative terminals of the charger output are reversely connected to the battery pack, the internal relay remains open and the charging circuit stays disconnected. Normal operation resumes once the battery is connected correctly.

Who choose us?

Wide range of product applications
Our company mainly provides chargers for major electric vehicle plants at home and abroad, new energy batteries, AGV storage and transportation, Al robots, etc.
Customisable products
Our company provides customers with the optimal solution for the characteristics of the charger topology according to the requirements of different industries.
Strong Team
Our company have 20 years experience of R&D, there are 9 professional technical engineers,including 1 doctoral student, 3 undergraduate students and 5 full-time college.
Multiple certifications
Our products pass the test of UL CB CE GS KC FCC RCM DOE CQC and got these certifications.