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Rich Solar 40 Amp MPPT Solar Charge Controller
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Rich Solar RS-MPPT40 40 Amp MPPT Solar Charge Controller
The Rich Solar RS-MPPT40 is a 40A MPPT solar charge controller built for RVs, vans, trailers, boats, cabins, sheds, and off-grid battery systems. With automatic 12V and 24V system detection, support for Sealed, Gel, Flooded, and Lithium batteries, high-efficiency MPPT charging, LCD system monitoring, load control, and built-in electronic protections, it gives medium-sized solar charging systems a smarter way to manage power from solar panels to batteries.
Product Overview
The RS-MPPT40 is designed for customers who need more charging capacity than a small entry-level controller without jumping into a larger 60A setup. It regulates solar power from the panels to the battery, helping manage charging safely and efficiently for 12V and 24V battery banks.
This controller is a strong fit for RV solar upgrades, camper vans, travel trailers, boats, cabins, sheds, remote buildings, and DIY off-grid power systems where reliable MPPT charging, battery compatibility, and built-in protection are important.
Built for Medium-Sized Solar Charging Systems
The RS-MPPT40 is made for battery-based solar systems that need dependable MPPT charging, flexible battery compatibility, and useful system visibility. It is a practical controller for customers building or upgrading 12V and 24V solar charging systems.
Key Features That Matter
This description keeps the focus on what customers need to know before buying: supported system voltages, battery compatibility, MPPT efficiency, display visibility, protection features, heat dissipation, and Bluetooth-module communication support.
The controller automatically detects 12V or 24V DC system voltages, making setup easier for common RV, van, boat, cabin, and off-grid battery banks.
Innovative MPPT technology helps track solar input efficiently, with tracking efficiency up to 99% and peak conversion efficiency of 98%. That helps the system harvest more usable charging power from connected solar panels.
The RS-MPPT40 is compatible with Sealed, Gel, Flooded, and Lithium deep-cycle batteries. It also supports diverse load control and can charge over-discharged lithium batteries when used within the correct system setup.
A die-cast aluminum design helps dissipate heat during operation. Built-in electronic protection helps guard against reverse polarity, overcharging, over-discharging, overload, short-circuiting, and reverse current.
System Monitoring Made Easier
The LCD screen and multiple LED indicators display system operation information, customizable parameters, and error codes. That makes it easier to see what the solar charging system is doing without relying on guesswork.
The built-in RS232 port can communicate with a BT-1 Bluetooth module, giving compatible systems an upgrade path for mobile monitoring when paired with the right accessory.
Best Uses
- RV solar charging systems
- Camper vans and travel trailers
- Boat and marine solar battery systems
- Cabins, sheds, and remote buildings
- Off-grid solar battery banks
- 12V and 24V DC system builds
- Lithium, Sealed, Gel, and Flooded battery charging
- DIY solar upgrades needing a reliable 40A MPPT controller
Key Benefits
- 40A MPPT solar charge controller
- Automatically detects 12V and 24V DC systems
- Compatible with Sealed, Gel, Flooded, and Lithium batteries
- MPPT tracking efficiency up to 99%
- Peak charge conversion efficiency of 98%
- LCD screen with multiple LED indicators
- Displays operation information, parameters, and error codes
- Electronic protection against reverse polarity and reverse current
- Protection against overcharge, over-discharge, overload, and short circuits
- Diverse load control capability
- Can charge over-discharged lithium batteries
- Die-cast aluminum design for heat dissipation
- RS232 port for BT-1 Bluetooth module communication
| Specifications | |
| Model SKU | RS-MPPT40 |
|---|---|
| Rated Battery Current | 40A |
| Rated Load Current | 20A |
| Max. PV Input Short Current | 50A |
| Max. Battery Voltage | 32V |
| Max Solar Input Voltage | 100VDC |
| Charge Circuit Voltage Drop | ≤0.26V |
| Discharge Circuit Voltage Drop | ≤0.15V |
| Working Temperature | -31°F to +113°F |
| Max Terminal Size | 8AWG |
| Rated Load Current | 10% to 90% NC |
| Overall Dimensions | 9.37 x 6.81 x 2.85 in |
| Net Weight | 4.41 lb |
Frequently Asked Questions
Clear answers to common questions about this product, setup, compatibility, and use.
