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CTECHi Buck-Boost MPPT Solar Charge Controller:

• High-Efficiency MPPT: Maximize solar panel output for faster battery charging.

• Buck-Boost Technology: Works with a wide range of battery voltages (12V, 24V, 36V, 48V).

• Bulk Buy Discounts: Get the best price on high-quality MPPT solar controllers.

• Factory Direct:  Ensure quality and fast turnaround times.

• Applications: Ideal for off-grid solar systems, RVs, boats, and more.

Improve your buying power and offer superior products to your customers.  Contact CTECHi today to discuss your bulk MPPT solar charge controller needs!

1. DC-DC buck-boost charging mode with negative grounding design, suitable for use in energy storage devices.
2. Advanced MPPT scanning technology and effective temperature management, efficient, reliable, and durable solar DC charging.
3. Support SEL, GEL, FLD, LI, and USE battery types.
4. Support 12V/24V/36V/48V automatic detection, lithium battery requires the user to set the system voltage.
5. PCBA bonded with polyurethane & silicon compound, for a great cooling and waterproof system, ensures better charging
performance in high temperature and high humidity environments.
6. Support RS485, CAN communication, using Modbus, RV-C communication protocol (support customer customization protocol and
communication media), optional remote LCD screen.

Function: 

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

* ＜150Voc max PV input voltage

* 20A max charge current

* 300W/12V; 600W/24V900W/36V;1200W/48V max PV input power

* 300 days max data logging

* 0.3W max self-power consumption

* Negative grounded design

* Inbuilt BT module for APP operation

Advanced Maximum Power Point Tracking (MPPT) Technology

* Fast MPPT starts with ultra-fast sweeping of the entire V-I curve

* Smart MPPT algorithm ensures better tracking in multiple power points

* High PV harvest performance in weak sunlight conditions

* Excellent peak efficiency exceeds 98%

High Quality & Functions

* No cooling fan; over-rating size heating sink

* Over-rating electronic components to minimize the power loss from heating

* Full charge power output up to 45ºC

* Compensates battery charge voltages with the use of a temperature sensor

* LCD screen display; key operation for parameter settings

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

Reliable Electronic Protections

* Advanced protection for battery charge & discharge

* Over-heating protection by power derating if the 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 20A DC load output control with various load modes

* External Bluetooth module connection for APP operation

* External remote LCD connection