MEAN WELL NPB-450 Series 450W High Reliable Ultra Wide Output Range Intelligent Battery Charger User Manual


NPB-450 Series


  • Patented auto ranging with ultra-wide charging voltage (10.5~21V,21~42V,42~80V, 54~100V; Please refer to page 8 for setting)
  • Built-in CANBus protocol for control, setting and monitoring
  • Programmable 2/3 stage and charging curve via SBP-001
  • Manual setting for 2/3 stage and 4 built-in charging curves via DIP S.W
  • Daghang proteksyon:
    Short circuit / Over voltage / Over temperature/ Battery under voltage/ Battery reverse polarity (No damage)
  • Charger OK and Battery Full signal
  • Temperature compensation function to prolong battery life (Lead-acid only)
  • -30°C~+70°C wide operating temperature
  • Thermal controlled DC fan for noise reduction
  • Remote ON / OFF control
  • Smart programmer available (Order NO.: SBP-001, sold separately)
  • Carry handle accessory available(Order NO.: DS-Carry handle, sold separately)
  • Comply with 62368-1 + 60335-1/-2-29 dual certification
  • Suitable for lead-acid (Pb) and li-ion batteries
  • 3 ka tuig nga warranty


  • AGV
  • E-Bike, E-Scooter, Camping car, Bus, Specialty vehicles
  • Robotic lawn mower
  • Washing robot
  • Recreation craft, Personal yacht or workboat
  • Sistema sa pagbantay
  • Telecommunication base station
  • Solusyon sa pag-backup sa sistema sa radyo
  • Equipments or instruments with backup battery


NPB-450 is a miniaturized, versatile, and ultra-wide voltage intelligent charger. It utilizes a fully digital control design with patented automatic battery voltage detection technology, with five key features including intelligent, versatile, user friendly, safe, and compact. The series have four models with output voltage ranges of 10.5~21V, 21~42V, 42~80V, and 54~100V respectively. The charging voltage range of each model is wide enough to cover a variety of different battery voltages and battery chemistries, and there is a built-in intelligent voltage detection charging mode (Note this mode is set to OFF by factory default and is suitable for lithium batteries with BMS only). The NPB-450 can pair with MEAN WELL’s SBP-001 programmer for digital configuration, such as select 2/3 stage charging, adjust charging voltage/current, and set charging cycle time to protect battery lifetime. Through the user-friendly DIP S.W. on front panel, user may also directly adjust the 2/3 stage charging, current (50~100%), and select between the 4 types of preset charging curves. In addition, a CANBus communication protocol is built in to meet professional applications, which allows remote controlling and monitoring for the status of the charger. In terms of safety, it has intelligent detection for proper battery voltage and connection as well as protection from reverse polarity. It passes ITE IC/EN/UL62368-1 and household appliances EN60335-1/-2-29 dual safety and 3-year warranty to guarantee reliable operation. The NPB-450 is truly an intelligent, safe, and reliable universal charger with outstanding cost performance.

Pag-encode sa Model



Pagpadayon nga Pagpasabut

I-block ang Diagram

PFC fosc: 80KHz
PWM fosc: 60KHz

I-block ang Diagram

Derating Kurba

Derating KurbaDerating Curve Continued

Static Kinaiya

Static Kinaiya

Manwal sa Pag-andar

1. Manual nga setting

Manluluwas nga kahimtang

1.1 2 o 3-stage mapili pinaagi sa DIP SW sa panel

2 o 3-stage selectable via DIP S-W on panel

1.2 Charging curve can be adjustable via DIP S.W on panel

Charging curve can be adjustable via DIP S-W on panel

  • The default curve is programmable, whereas other pre-defined curves can be activated by the means of the DIP S.W; This series provides 2 or 3 stage charging curve please refer to the table below and the Mechanical Specification.

Charging curve can be adjustable via DIP S-W on panel continued

2. Programmable charging curve

Ang Charging Curve mahimong itakda pinaagi sa SBP-001 gamit ang kompyuter

lakang 1

Pag-configure sa hardware

Pag-configure sa hardware

lakang 2

Connect to software for setting

Connect to software for setting

Connect to software for setting continued

Paglaraw sa Pag-andar:

SBP-001 is a programmer, particularly for MEAN WELL’s various programmable battery charger models to program the parameters of charging curves, such as the 2 or 3 stage selectable, Constant current (CC), tapper current(TC), Constant voltage (CV), float voltage (FV),Charging time out and so on, to accommodate the diversified battery specification in industry. With the design accounting for simplicity and convenience, users can easily configure MEAN WELL’s programmable battery chargers with SBP-001 programmer and the computer; all of the setups are able to be finished easily by the means of the specific software.
Note:(1) Tapper current(TC) default is 10%, can be fine tuned from 2% to 30% by SBP-001 with computer or CANBus Interface.
(2) Please contact MEAN WELL for more details.

※ Software Interface:

Software Interface

3. Auto Ranging for Charging (Default non-Auto ranging)

※ Function Description:

a. NPB-450 has built-in auto ranging mode.
(Note this mode is set to OFF by factory default and is suitable for lithium batteries with BMS only)

b. When operating in auto ranging mode , NPB-450 will automatically detect the voltage sa baterya nga konektado ug i-adjust ang pag-charge voltage sumala. Dili kini magsugod sa pag-charge sa yunit nga angay nga baterya voltage nakit-an.

c. While under auto ranging mode, NPB-450’s built-in MCU will adjust charging voltage. Walay potentiometer alang sa voltage adjustment on the front panel.

d. While under auto ranging mode, the charging current can be adjusted between 50~100%. (The charging current can not be adjusted via potentiometer while not operating in auto ranging mode)

※ When using the auto ranging charging curve function, please pay attention to the following:

Input-Output Side

  1. Default factory setting is OFF via DC output side DIP S.W, Follow steps A1~A6 below to enable the setting.
  2. Auto ranging function should use together with Lithium batteries and BMS (Battery Management System).
  3. Do not exceed the output voltage ug kasamtangang mga han-ay sama sa gipiho sa NPB-450 nga mga detalye (palihug tan-awa ang panid 2).

※ Auto Ranging function by DIP S.W Setting

Auto Ranging function by DIP SW Setting

※ Back to non-auto ranging as following:

Non-auto ranging

4. Auto Derating function

※ Covered by over temperature protection, auto de-rating function works under operation either in charging curve (2 or 3 stage) o kontrolado sa protocol sa komunikasyon (CANBus).

T1(Typ.): Maximum ambient temperature of 100% output current.
T2(Typ.): T1+5℃.

Auto Derating function

5. CANBus communication interface

CANBus 2.0B version, Can control, setting and monitoring that including output charging voltage, output charging current, internal temperature and DC output ON/OFF……and so on, please refer to the user nga manwal alang sa dugang nga mga detalye.

CANBus communication interface

CANBus communication interface continued

6. Charger OK Signal

Charger OK signal is a TTL level signal.
The maximum sourcing current is 10mA.

Charger OK Signal

7. Battery Full Signal

Battery full signal is a TTL level signal.
The maximum sourcing current is 10mA.

Battery Full Signal

8. Hilit nga ON-OFF Control

The NPB-450 can be turned ON/OFF by using the “Remote Control” function.

Layo nga Control nga ON-OFF

※ The charger is shipped, by factory default, with Remote ON-OFF(pin 7) and +12Vaux (pin 8) shorted by connector.

Remote ON-OFF Control continued

9. Temperature compensation (3 stage lang)

Temperature compensation function to prolong battery life for lead-acid batteries. Temperature compensation range is 0 ~ 40℃.
The battery temperature sensor comes along with the charger can be connected to the unit to allow temperature compensation of the charging voltage.
Kung ang sensor wala gigamit, ang charger molihok nga normal.

Ang bayad sa temperatura

10. DC Output Side LED Indicators & Katugbang nga Signal sa Function Pins

DC Output Side LED Indicators

Pagpasabut sa Mekanikal

※ Intelligent Battery Charger model

Intelihenteng Battery Charger nga modelo



※ Control Pin No. Assignment : HRS DF11-14DS or equivalent

Control Pin No Assignment

※ LED Status Table

Talaan nga Status sa LED

※ Connector Pin No. Assignment : HRS DF11-14DS or equivalent

Connector Pin No Assignment

Pag-andar sa Pin

Note1: Non-isolated signal, referenced to [GND(signal)].
Note2: Isolated signal, referenced to GND-AUX

Lista sa Accessory

※ NTC Sensor and Remote Control mating along with NPB-450 (Standard accessory)

Lista sa Accessory

※ Carry handle (Optional accessory, battery charger and pull handle should be ordered seperately)

Accessory List Continued 1

Accessory List Continued 2

Pag-instalar sa Manwal

Palihug pagdangup sa:

Mga Dokumento / Mga Kapanguhaan

MEAN WELL NPB-450 Series 450W Taas Kasaligan nga Ultra Wide Output Range Intelligent Battery Charger [pdf] Manwal sa Instruksyon
NPB-450 Series, 450W High Reliable Ultra Wide Output Range Intelligent Battery Charger, NPB-450 Series 450W High Reliable Ultra Wide Output Range Intelligent Battery Charger

mga pakisayran

Leave sa usa ka comment

Ang imong email address dili nga gipatik. Gikinahanglan kaumahan mga gimarkahan *