At a glance
- Battery Charging Voltage
- Boost 14.4 V, float 13.8 V (default)
- Charging Current
- 6.8 A, adjustable 50 to 100%
- Recommended Battery Capacity
- 20 to 90 Ah
- Battery Type
- Lead acid and Li-ion
- Input Voltage Range
- 90 to 264 V AC
- Output Connector
- Terminal block (TB)
MEAN WELL NPB-120-12TB Battery Charger, 12 V battery, 6.8 A
Price on request
At a glance
- Battery Charging Voltage
- Boost 14.4 V, float 13.8 V (default)
- Charging Current
- 6.8 A, adjustable 50 to 100%
- Recommended Battery Capacity
- 20 to 90 Ah
- Battery Type
- Lead acid and Li-ion
- Input Voltage Range
- 90 to 264 V AC
- Output Connector
- Terminal block (TB)
Charges lead-acid or lithium battery banks for backup power in surveillance and radio systems, and for vehicles such as buses, trucks and camper vans. Battery charger, 12 V battery, 6.8 A. 90 to 264 V AC universal input with built-in PFC.
Part of the MEAN WELL NPB-120 series. Compare all 3 models
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- WarrantyManufacturer warranty under MEAN WELL's terms: 3 years. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
What it is
The MEAN WELL NPB-120-12TB is a battery charger from the NPB-120 series (120 W Compact Size and Wide Output Range Charger), rated 12 V battery, 6.8 A.
What it is used for
Mains powered charger for 12 V lead acid or lithium battery banks, such as the backup batteries of surveillance or radio systems and vehicle batteries; charges with a 2 or 3 stage curve set on the panel. MEAN WELL lists applications such as radio system backup, electric scooter charging, camping cars, buses, heavy duty trucks and specialty vehicles, surveillance systems.
Key features
- 90 to 264 V AC universal input with built-in PFC.
- Charges lead acid and Li-ion batteries.
- Charging voltage and charging current (50 to 100%) adjustable by VR.
- 2 or 3 stage charging selectable by DIP switch.
- Protections: short circuit, over voltage, over temperature, battery reverse polarity.
- Front panel LED indicator for charging status.
Key Specifications
- Battery Charging Voltage: Boost 14.4 V, float 13.8 V (default).
- Charging Current: 6.8 A (typ.), adjustable 50 to 100%.
- Recommended Battery Capacity: 20 to 90 Ah.
- Battery Type: Lead acid (flooded, gel, AGM) and Li-ion (lithium iron, lithium manganese).
- Input Voltage Range: 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage).
- Output Connector: Terminal block (TB).
Buying considerations
Size the unit with headroom above the connected load and check the derating information in the datasheet for high ambient temperature or low input voltage. Other models in the same series are listed on this page.
Installation considerations
MEAN WELL treats this unit as a component of the final equipment, so approvals and EMC performance should be confirmed for the complete installation. Wiring and safety details are in the official datasheet linked below.
Features

Size and fit
- Dimensions
- 182.7 x 96 x 49 mm (L x W x H)
- Weight
- 1.3 kg
Technical specifications
Key facts
- What is it?
- Battery chargerBrand MEAN WELL, model NPB-120-12TB
- What does it output?
- 6.8 A, 103.4 W max
- What input does it accept?
- 90 to 264 V AC
- Which documents are available?
- Datasheet, certificate Open documents
RelatedSeriesMEAN WELL NPB-120 series, 3 modelsDocumentsAll MEAN WELL documents
Output
- Battery Charging Voltage
- Boost 14.4 V, float 13.8 V (default)
- Output Voltage Adjustment Range
- 10.5 to 15.2 V by VR
- Charging Current
- 6.8 A (typ.), adjustable 50 to 100%
- Rated Output Power
- 103.4 W max.
- Efficiency (typ.)
- 87%
- Rated Output Current
- 6.8 A (charging, typ.)
Input
- Input Voltage Range
- 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage)
- Power Factor
- PF >0.98 at 115 V AC; PF >0.92 at 230 V AC (12 V), PF >0.93 at 230 V AC (24 V, 48 V), full load
- Battery Type
- Lead acid (flooded, gel, AGM) and Li-ion (lithium iron, lithium manganese)
- Input Frequency Range
- 47 to 63 Hz
Protection
- Withstand Voltage
- I/P-O/P: 3 kV AC; I/P-FG: 2 kV AC; O/P-FG: 0.5 kV AC
Environment
- Cooling
- Fanless design
- Operating Temperature
- -30 to +70 °C (refer to derating curve)
- Operating Humidity
- 20 to 95% RH non-condensing
Physical
- Dimensions
- 182.7 x 96 x 49 mm (L x W x H)
- Weight
- 1.3 kg
Approvals
- MTBF
- 1895.4K hrs min. Telcordia TR/SR-332 (Bellcore); 225.8K hrs min. MIL-HDBK-217F (25 °C)
Other
- Recommended Battery Capacity
- 20 to 90 Ah
- Charging Curve
- 2 or 3 stage selectable by DIP switch
- Output Connector
- Terminal block (TB)
- Series
- NPB-120
- Warranty
- Manufacturer warranty under MEAN WELL's terms: 3 years. How claims work
Product attributes and shipping details
| Brand | MEAN WELL |
|---|---|
| Power Output | 103.4 W |
Downloads
Documentation
- NPB-120 series datasheetDatasheet · Family · meanwell.comDownload
Certificate and compliance document (1)
- NPB-120 CE declaration of conformityCertificate · Family · meanwell.comDownload
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
What input voltage does the NPB-120-12TB accept?
MEAN WELL lists 90 to 264 V AC; 127 to 370 V DC (derating may be needed at low input voltage) for this model.
What battery charging does the NPB-120-12TB provide?
The datasheet gives battery charging voltage Boost 14.4 V, float 13.8 V (default), charging current 6.8 A (typ.), adjustable 50 to 100%.
Ask about this modelSetup, compatibility, what is in the box
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Looking for an alternative?
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