BougeRV MPPT solar charge controller for off-grid solar systems
BougeRV MPPT solar charge controller with low-temperature charging protection below 32°F
BougeRV MPPT solar charge controller compatible with 12V and 24V LiFePO4 battery systems
BougeRV MPPT solar charge controller with 99.5% tracking efficiency and 99% conversion efficiency
BougeRV MPPT solar charge controller with 33 ft remote control range and offline operation without internet
BougeRV MPPT solar charge controller with adjustable charging current for different battery sizes
BougeRV MPPT solar charge controller with three selectable charging and working modes
BougeRV MPPT solar charge controller with eight intelligent safety protections for stable off-grid operation
BougeRV 30A, 40A and 60A MPPT solar charge controllers with different current ratings
BougeRV 12V off-grid solar system connection diagram with MPPT charge controller and solar solution
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV MPPT solar charge controller for off-grid solar systems
BougeRV MPPT solar charge controller with low-temperature charging protection below 32°F
BougeRV MPPT solar charge controller compatible with 12V and 24V LiFePO4 battery systems
BougeRV MPPT solar charge controller with 99.5% tracking efficiency and 99% conversion efficiency
BougeRV MPPT solar charge controller with 33 ft remote control range and offline operation without internet
BougeRV MPPT solar charge controller with adjustable charging current for different battery sizes
BougeRV MPPT solar charge controller with three selectable charging and working modes
BougeRV MPPT solar charge controller with eight intelligent safety protections for stable off-grid operation
BougeRV 30A, 40A and 60A MPPT solar charge controllers with different current ratings
BougeRV 12V off-grid solar system connection diagram with MPPT charge controller and solar solution
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V
FEATURES PRODUCT VIDEO

BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V

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The BougeRV Sunflow 40A MPPT Solar Charge Controller is built for 12V/24V off-grid solar systems, making it a practical choice for RVs, camper vans, overlanding, and camping. With up to 99.5% tracking efficiency and 99% conversion efficiency, it helps make better use of available solar power.

Supporting LiFePO4, AGM, GEL, FLD, SLD, and user-defined batteries, the controller automatically adapts to 12V or 24V systems. The adjustable 0–40A charging current provides greater flexibility for different battery sizes. Built-in low-temperature charging protection below 32°F (0°C) helps protect lithium batteries, while Bluetooth control up to 33 ft allows convenient monitoring without internet. With 8 intelligent protection functions, the Sunflow 40A delivers stable and reliable charging for medium-size RV and off-grid solar systems.

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Smart, Efficient Charging for Your Off-Grid Power System

BougeRV Sunflow MPPT solar charge controller for RV and off-grid solar systems
BougeRV Sunflow MPPT solar charge controller for RV and off-grid solar systems

Built for demanding outdoor conditions, this MPPT solar charge controller maintains reliable charging performance in high and low temperatures. When temperatures drop below 32°F (0°C), built-in low-temperature protection automatically stops lithium battery charging to help protect battery life and system stability—whether you're camping, traveling, or living off-grid.

Designed for LiFePO4 batteries, this 12V/24V solar charge controller automatically recognizes your system voltage for a simpler setup. No complicated manual configuration—just connect your system and start charging. Ideal for RV solar systems, camper vans, marine applications, and off-grid setups.

With up to 99.5% tracking efficiency and 99% conversion efficiency, this MPPT controller helps maximize the solar energy captured from your panels. Less energy wasted means more usable power for your battery and more reliable energy when you're off the grid.

BougeRV MPPT solar charge controller with low-temperature battery protection below 32°F for RV and off-grid solar systems
BougeRV MPPT solar charge controller compatible with LiFePO4 batteries and 12V 24V solar systems
BougeRV high-efficiency MPPT solar charge controller with 99.5% tracking efficiency and 99% conversion efficiency

Stay connected to your solar system wherever you are. With a 33 ft remote control range, you can monitor system status and adjust charging settings without WiFi or cellular service. Convenient for RVs, camper vans, and remote off-grid locations.

Different battery capacities require different charging levels. Adjustable charging current lets you fine-tune the MPPT solar charge controller to match your battery and solar setup, helping deliver controlled charging while reducing the risk of overcurrent.

Built-in protection continuously monitors your solar charging system against common electrical risks, including over-temperature, over-voltage, over-discharge, short circuit, reverse connection, overload, and input power issues. Multiple safeguards help keep your battery and solar system stable in demanding outdoor conditions.

BougeRV MPPT solar charge controller with 33 ft Bluetooth control and offline operation without internet
BougeRV MPPT solar charge controller with adjustable charging current for different battery capacities
BougeRV MPPT solar charge controller with eight intelligent protection functions for safe off-grid solar charging

Key Specifications for Reliable Solar Charging

Built for RV, camper van, and off-grid solar systems, with the key electrical specifications you need for a simple and reliable setup.

BougeRV MPPT solar charge controller electrical specifications for RV, camper van, and off-grid solar systems
BougeRV MPPT solar charge controller electrical specifications for RV, camper van, and off-grid solar systems

Real-Time Monitoring & Full Offline Control

Monitor your solar panels, battery, and load status in real time with the Sunflow 40A MPPT solar charge controller. Choose from three operating modes—Full Function, No-Load, and Monitoring Mode—to match your needs. Prefer a standalone setup? Full Function Mode lets you adjust key charging parameters directly from the controller, with no app or internet connection required.

Product Specifications

SKU ISE218

System Voltage 12V/24V Battery Type LiFePO4, SLD, GEL, FLD, AGM, User Defined
Rated Charging Current 40 Amp Grounding Type Common Negative
Maximum PV Input Voltage 100V (95V protection, 90V recovery) Operating Temperature Range -31℉ to 149℉ (-35℃ to 65℃)
Maximum Input of PV System 600W/12V; 1200W/24V Protection Grade IP34
Rated Load Current 20 Amp Bluetooth Communication built-in bluetooth
Charge Current Ajust Range 0 Amp to 40 Amp Data Storage Save the last 200 days of historical data
Battery Operate Voltage Range 8V to 32V Dimension 8.94L*6.26W*2.95 inches
No Load Loss ≤10mA Weight 3.95 lbs
Product Warranty 18-month Product Type Solar Charge Controller
SKU ISE218
System Voltage 12V/24V
Rated Charging Current 40 Amp
Maximum PV Input Voltage 100V (95V protection, 90V recovery)
Maximum Input of PV System 600W/12V; 1200W/24V
Rated Load Current 20 Amp
Charge Current Ajust Range 0 Amp to 40 Amp
Battery Operate Voltage Range 8V to 32V
No Load Loss ≤10mA
Battery Type LiFePO4, SLD, GEL, FLD, AGM, User Defined
Grounding Type Common Negative
Operating Temperature Range -31℉ to 149℉ (-35℃ to 65℃)
Protection Grade IP34
Bluetooth Communication built-in bluetooth
Data Storage Save the last 200 days of historical data
Dimension 8.94L*6.26W*2.95 inches
Weight 3.95 lbs
Product Warranty 18-month

What's in the Box

BougeRV Sunflow 40A MPPT Solar Charge Controller 12V/24V

Temperature Sensor

Wiring Terminals

User Manual

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