100A MPPT Solar Charge Controller, 12/24/36/48V Auto, LCD Display, 8 Working Modes, 4-Stage Charging, Compatible with Lithium/AGM/GEL, for RV Home Solar System

✔️ 100A MPPT Solar Charge Controller | ✔️ 12/24/36/48V Auto Recognition | ✔️ LCD Backlight Display – Clear Monitoring | ✔️ 8 Working Modes – Flexible Control | ✔️ 4-Stage Charging – Efficient & Safe | ✔️ Compatible with Multiple Battery Types | ✔️ Aluminum Heat Sink Base – Fast Cooling | ✔️ Large Terminal Interface – Easy Installation

This 100A MPPT solar charge controller is a high-performance, intelligent charging solution for your solar power system. Featuring advanced Maximum Power Point Tracking (MPPT) technology, it maximizes solar panel efficiency and delivers rapid, efficient, and safe battery charging. The controller automatically recognizes 12V, 24V, 36V, or 48V system voltages, making it versatile for a wide range of applications. The LCD backlight display allows for clear monitoring of device operating status, while the large terminal interface with wide-spacing terminals improves insulation performance and reduces energy loss. Built with a multi-rib aluminum heat sink base, it ensures faster and more efficient cooling for stable operation and extended lifespan. Compatible with SLD, GEL, Flooded, and Lithium batteries, this controller is your battery protection expert – extend battery life with confidence. Perfect for RV, home, marine, and off-grid solar systems.

▍MPPT Technology – Maximum Solar Efficiency

Advanced Maximum Power Point Tracking (MPPT) algorithm.

Rapid, efficient, and safe battery charging algorithm.

Maximizes solar panel output for faster charging.

▍8 Working Modes – Flexible Control for Any Scenario

Charging Mode: Discharge is not allowed under any conditions.

Light Control Mode: When the controller detects night time, it delays 10 minutes before enabling discharge; when daytime is detected, it delays 10 minutes before stopping discharge.

Light Control + Timer Mode: When night is detected, discharge starts after a 10-minute delay, and a timer begins counting down. When the timer reaches zero, discharge stops. Maximum delay time is 23:59.

Universal Control Mode: Always keeps discharge on (provided no faults are detected).

Manual Control Mode: Manually turn discharge on or off using the control buttons.

Timer Control Mode: Set a specific time to turn discharge on and off.

TEST Mode: Same as Light Control + Timer mode, but without the 10-minute delay.

Low-Voltage Override Mode: After low-voltage protection activates, long press the “▼” button for 5 seconds to force output. Note: This may damage the battery – use with caution!

▍4-Stage Charging – Rapid, Efficient & Safe

Bulk Charge: Fast charging to reach maximum current.

Boost Charge: Increased voltage for accelerated charging.

Float Charge: Maintains battery at optimal voltage.

Equalization Charge: Balances battery cells for extended life.

Rapid, efficient, and safe battery charging algorithm.

▍Compatible with Multiple Battery Types

SLD (Sealed Lead Acid)

GEL (Gel Battery)

Flooded (Wet Cell Battery)

Lithium (LiFePO4)

Your battery protection expert – extend battery life.

▍Quality in Every Detail

LCD backlight display – clear monitoring of device operating status.

One-key operation – easy parameter setup and quick troubleshooting.

Large terminal interface – large cross-section, wide-spacing terminals for improved insulation performance and easier installation. Effectively reduces circuit resistance, minimizes energy loss.

Aluminum heat sink base – multi-rib design increases heat dissipation area for faster and more efficient cooling. Ensures stable operation and extends product lifespan.

▍At-a-Glance Display Interface

Battery work status display area – monitor battery health.

Solar panel operating status area – check panel performance.

Load output status and all parameters display – real-time system overview.

Mode control display area – see active mode.

Normal and fault status display area – quick troubleshooting.

▍Charging Function – Unrestricted

The charging function is not limited by any mode restrictions.

As long as charging conditions are met, the controller will charge immediately.

Discharge control function varies according to different control modes (as detailed above).

Operating Mode Description

The charging control function is not limited by any mode restrictions; it will charge immediately once the charging conditions are met. The discharging control function varies depending on the control mode. Under normal fault-free conditions, the specific descriptions are as follows:

1. Charging Mode: Discharging is prohibited under any conditions.

2. Light Control Mode: When the controller detects nighttime, it starts discharging after a 10-minute delay; when it detects daytime, it stops discharging after a 10-minute delay.

3. Light Control + Delay Control Mode: When the controller detects nighttime, it starts discharging after a 10-minute delay and begins a countdown. Discharging stops when the timer reaches 0. The maximum delay time is 23:59.

4. General Control Mode: Under normal fault-free conditions, it maintains a constant discharging state.

5. Manual Control Mode: Use the "" key to start or stop discharging.

6. Timer Control Mode: Timed start and timed stop of discharging.

7. TEST: Same as the light control + delay control mode, but without the 10-minute delay.

8. If you still need to discharge after the controller has gone through low voltage protection, you can press and hold the "▼" button for 5 seconds to continue outputting, but you can only manually stop the discharge. Note that this function may damage the battery, so please use it with caution!

Usage Tips:

Install in a dry, ventilated environment away from direct sunlight and water.

Connect the battery first, then the solar panel, and finally the load.

Ensure correct polarity – reverse connection may damage the controller.

For low-voltage override (long press “▼” button for 5 seconds), note that this may harm the battery – use with caution.

Parameters can be adjusted via the one-key operation menu – refer to the user manual for advanced settings.

This product has no user-serviceable parts – do not disassemble.