• Maximum Power: 205.2 W (Continuous)
• Boost Charge Voltage (Vboost): 57.6 V DC (Default)
• Float Charge Voltage (Vfloat): 55.2 V DC (Default)
• Voltage Adjustment Range: 42 – 60.8 V DC (via Vo Adj. potentiometer)
• Rated Output Current: 4 A
• Current Adjustment Range: 2 – 4 A (50% to 100% via Io Adj. potentiometer)
• Recommended Battery Capacity: 15 – 50 Ah
• Efficiency: 92%
• Input Voltage Range: 90 – 264 V AC / 127 – 370 V DC
• Frequency Range: 47 – 63 Hz
• Power Factor (PFC): PF > 0.98 / 115 V AC, PF > 0.95 / 230 V AC (at full load)
• No-Load Power Consumption: < 0.15 W (when AC switch is off)
• Output Connector: Terminal Block Type (DT-66-B11W-02)
• Operating Temperature: −30 °C to +70 °C (Refer to derating curve)
• Cooling: Fanless design (Free air convection)
• Charging Curve: 2 or 3 stage selectable via DIP switch
• Compatible Battery Types: Lead-Acid (Flooded, Gel, AGM) & Li-ion (Lithium iron, Lithium manganese)
• Protections: Short circuit, over voltage, over temperature, battery reverse polarity (internal fuse)
• Safety & EMC Standards: CB IEC62368-1, IEC60335-1/2-29, UL62368-1, Dekra EN62368-1, EN60335-1/2-29, CE, UKCA, EAC, BSMI, R33100
• Dimensions (L x W x H): 182.7 mm x 96 mm x 49 mm
• Weight: 1.3 kg
• Manufacturer Warranty: 3 Years

Information about the MEAN WELL NPB-240-48TB

The MEAN WELL NPB-240-48TB is a highly versatile, fanless 240W compact battery charger designed for charging lead-acid (Flooded, Gel, AGM) and lithium-ion (LiFePO4, lithium manganese) batteries. Delivering a rated charging current of 4A at a nominal 48V DC system voltage, this model comes equipped with a heavy-duty screw terminal block output directly on the unit. It supports a universal AC input range of 90 to 264V AC with active PFC, achieving high energy efficiency up to 92%.

Featuring a complete fanless convection-cooled construction, the NPB-240-48TB operates in complete silence with zero mechanical wear. User-configurable controls on the front panel allow precise adjustments of both the charging voltage (42 to 60.8V DC) and charging current (50% to 100%) via built-in potentiometers. Additionally, an integrated DIP switch enables effortless selection between a 2-stage charging profile (ideal for Li-ion chemistries) and a 3-stage profile (ideal for lead-acid batteries). Outfitted with comprehensive safety features including short circuit, overvoltage, overtemperature, and battery reverse polarity protection, it provides reliable power management for mobile and industrial applications.