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

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BougeRV 40 Amp MPPT Solar Charge Controller offers high tracking efficiency up to 99.5% and peak conversion efficiency up to 99%, maximizing your solar panel output. Compatible with LiFePO4 batteries, it features adjustable charging current (0-40A), dual MOS circuits for safety, and Bluetooth app control within 32 feet, perfect for RV, off-grid, and home solar systems.

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Built to Perform in Extreme Temperatures

Designed for demanding outdoor environments, this MPPT solar charge controller maintains stable full-load performance even under high heat conditions. When temperatures drop below 32°F (0°C), built-in low-temperature protection automatically safeguards your lithium battery, helping extend battery life and system stability—whether you're camping, traveling, or working off-grid.

Seamless Compatibility with Modern Solar Systems

Optimized for LiFePO4 batteries, this controller supports both 12V and 24V solar systems. With automatic battery voltage recognition, setup becomes effortless—no manual configuration required. Simply connect your system and start charging, ideal for RV upgrades, marine setups, and off-grid solar installations.

High-Efficiency MPPT Solar Charging

Featuring up to 99.5% tracking efficiency and 99% conversion efficiency, this MPPT controller maximizes every bit of solar energy captured from your panels. Less energy loss means more usable power for your batteries—helping you stay powered longer in off-grid environments.

Smart Off-Grid Control Without Internet

Stay in control wherever you are. With a 33 ft remote control range, you can monitor and adjust charging settings without WiFi or cellular connection. Whether you're inside your RV or working outdoors, system control stays simple and accessible.

Adjustable Charging for Flexible Battery Systems

Different battery capacities require different charging strategies. This controller allows you to manually adjust charging current, ensuring safe and optimized charging performance across various battery setups while reducing the risk of overcurrent damage.

8-Layer Intelligent Protection System

This controller continuously monitors your system to prevent common charging risks such as overcharging, overheating, short circuits, overcurrent, and reverse polarity. Each layer works in real time to keep your solar setup stable, safe, and protected—even in demanding outdoor environments.

Seamless Compatibility with Modern Solar Systems

Optimized for LiFePO4 batteries, this controller supports both 12V and 24V solar systems. With automatic battery voltage recognition, setup becomes effortless—no manual configuration required. Simply connect your system and start charging, ideal for RV upgrades, marine setups, and off-grid solar installations.

High-Efficiency MPPT Solar Charging

Featuring up to 99.5% tracking efficiency and 99% conversion efficiency, this MPPT controller maximizes every bit of solar energy captured from your panels. Less energy loss means more usable power for your batteries—helping you stay powered longer in off-grid environments.

Smart Off-Grid Control Without Internet

Stay in control wherever you are. With a 33 ft remote control range, you can monitor and adjust charging settings without WiFi or cellular connection. Whether you're inside your RV or working outdoors, system control stays simple and accessible.

Adjustable Charging for Flexible Battery Systems

Different battery capacities require different charging strategies. This controller allows you to manually adjust charging current, ensuring safe and optimized charging performance across various battery setups while reducing the risk of overcurrent damage.

8-Layer Intelligent Protection System

This controller continuously monitors your system to prevent common charging risks such as overcharging, overheating, short circuits, overcurrent, and reverse polarity. Each layer works in real time to keep your solar setup stable, safe, and protected—even in demanding outdoor environments.

Key Electrical Specifications

Reliable solar charging for RVs, vans, and off-grid power systems—no complicated setup required.

Real-Time Monitoring & Full Offline Control

The Sunflow 40A MPPT controller provides real-time monitoring of your solar system, including panels, battery, and load status. It features three intuitive operating modes—Full Function, No-Load, and Monitoring Mode—designed to adapt to different usage needs. For users who prefer standalone operation, Full Function Mode enables direct parameter adjustment via onboard controls, without requiring app connectivity.

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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