Negative Grounded Model , 50A solar charge controller , 12/24V/36V/48V Auto

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50A Solar DC-DC Buck-Boost Controller

Model NO.M4850ND

This device is a DC-DC intelligent charger / controller for vehicle or similar systems with dual batteries. Applied in a dual battery system, this charger combines respective advantages of motor (ordinary/smart alternator) power generation and photovoltaic power generation

Features
Specifications
Downloads
Optional Accessories

50A MPPT Solar Charge Controller 12/24V/36V/48V Auto - Negative Grounded Model

M4850ND 50A Solar Charge Controller / MPPT Charge Controller

▶ 12/24V/36V/48V battery system auto recognition

▶ 140Voc Max PV input Voltage

▶ 50A Max Charge Current

▶ 750W/1500W/2250W/3000W Max PV input power

▶ Operating Temperature -25℃-45℃

▶ Storage Temperature -35℃-65℃

▶ Negative Grounded Design

▶ Inbuilt BT module for APP operation

Advanced Maximum Power Point Tracking (MPPT) Technology

Fast MPPT start with ultra fast of sweeping of the entire V-I curve.

Smart MPPT algorithm ensures a better tracking in multiple power points.

High PV harvest performance in weak sunlight conditions.

Excellent peak efficiency exceeds 98%.

High Quality & Functions

Over rating electronic components to minimize the power loss from heating.

No cooling fan; over rating size heating sink.

Full charge power output up to 65ºC.

Compensates battery charge voltages with use of temperature sensor.

LCD screen display; key operation for parameter settings.

Lead-acid AGM/GEL/Flooded & Lithium batteries supportable.

Reliable Electronic Protections

Advanced protections for battery charge & discharge.

Over-heating protection by power derating if temperature is high.

Allow max 25% exceeding rated power without controller damage.

Extensive protections including PV reverse polarity & reverse current protection.

Extensive Device Functions

RS485 port for Modbus communication.

External port for multiple devices parallel use.

Extra 50A DC load output control with various of load modes.

External Bluetooth module connection for APP operation.

External remote LCD display connection.

Application:

RV/Caravan Marine Solar Home Solar Bag

Parameter	Value
Model No	M4850ND
No-load Loss	25mA
System Wiring Grounded	Negative Grounded
Operating Temperature	-25℃~45℃
Storage Temperature	-35℃~65℃
Operating Altitude	≤3000m
IP Protection	IP45
Charging Effiffifficiency	>98%
Communication Port	RS485/CAN(Optional)
Charging Derating	Step derating and recovery at 70℃
Connectors	Bare wire terminals (M6)
Wire Gauge	8mm² (8AWG)(30A) \| 12mm² (6AWG)(50A)
LED instructions	DC,PV,BAT1(two),BAT2
Operating Mode	External Display
Bluetooth Connection	The built-in Bluetooth module of the display screen operated by APP
Protection	PV Over-Voltage, PV Reverse Protection, Battery Over Voltage, Battery Over-Charge, Battery Reverse Protection, Controller Over-Heating, High Ambient Temperature.

Battery 1	Battery 2

Battery	Life Battery	Battery	Aut Battery
Battery System Voltage	12/24V AUTO (M2425ND/M2450ND) 12/24V/36V/48V AUTO(M4850ND	Battery System Voltage	AUTO
Battery Voltage Range	8V-32V (M2425ND/M2450ND) 8V-64V(M4850ND)	Battery Voltage Range	8V-32V(M2425ND/M2450ND) 8V-64V(M4850ND)
Battery Type	GEL/SEL/FLD/LI/USE	Battery Type	GEL
Max Current	25A(M2425ND) 50A(M2450ND) 50A(M4850ND)	Max Current	25A(M2425ND) 50A(M2450ND) 50A(M4850ND)

Battery 2 to Battery 1

Charging Mode	BuckBoost
Battery 2 to Battery 1	Activ:B2 > 13.2Vn(Adjustable) and B1 > 5V Inactiv:B2 < 12.7Vn(Adjustable) or B1 < 5V
Battery 1 to Battery 2	Activ:B1 > 12.7Vn(Adjustable) and B2 < 12n(Adjustable) Inactiv:B2 > 12.8Vn(Adjustable) or B1 < 12n or B2 < 5V

PV

Charging Mode	Buck MPPT+CC+CV
Max Solar Input Power	375W/750W(M2425ND) 750W/1500W(M2450ND) 750W/1500W/2250W/3000W(M4850ND)
Max Solar Input Voltage	100Voc(M2425ND/M2450ND) 140Voc(M4850ND)
PV Tracking Efficiency	>99%

Download

M4850ND User Manual.pdf

50A Solar DC-DC Buck-Boost Controller

Advanced Maximum Power Point Tracking (MPPT) Technology

High Quality & Functions

Reliable Electronic Protections

Parameter

Value

Download