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Get a 35% discount on all products upon registration as a partner when you buy direct from us.
R3850,20 Original price was: R3850,20.R2502,63Current price is: R2502,63.
The Renogy Rover Li 40A MPPT Solar Charge Controller with BT-2 Bluetooth Module is a high-efficiency 12V/24V controller with intelligent 4-stage charging, automatic voltage detection, and low-temperature charging protection.
The Renogy Rover Li 40A MPPT Solar Charge Controller unleashes full power in any environment — and this bundle includes the Renogy BT-2 Bluetooth module for wireless monitoring right out of the box. Upgrade to MPPT charging with low-temperature protection for the most efficient solar charging of your batteries — whatever the conditions. With intelligent 4-stage charging, automatic 12V/24V detection, rapid heat dissipation, and comprehensive protection, it’s a reliable, high-performance heart for any RV, marine, or off-grid solar system.
Advanced Maximum Power Point Tracking harnesses every bit of available sunlight for optimal charging, with tracking efficiency up to 99% and peak conversion efficiency of 98%. The 40A output handles up to 520W of solar on a 12V system, or a substantial 1040W on 24V.
Bulk, Boost, Float, and Equalization stages ensure rapid, safe, and complete charging that extends battery life. The controller monitors battery status in real time and protects against overcharge and over-discharge.
Compatible with AGM, Gel, Flooded, Sealed lead-acid, Lithium (LiFePO4), and User-defined batteries. Automatic 12V/24V detection works for lead-acid types, while lithium voltage is set manually. The built-in lithium activation feature can revive deeply discharged LiFePO4 batteries that have tripped their BMS protection.
Self-diagnosing protection guards against reverse polarity, overcharging, over-discharging, overload, short-circuiting, overvoltage, over-temperature, and reverse current — with clear on-screen error codes for fast troubleshooting.
The bundled Renogy BT-2 Bluetooth module connects to the controller’s RS485 port, letting you monitor live performance and adjust battery parameters remotely through the Renogy DC Home app on your smartphone or tablet. The built-in LCD and four LED indicators also display live system data, charging status, and error codes on the unit itself. A DC load terminal (≤20A) supports timer and automatic load control.
| Model / SKU | Rover Li 40A MPPT with BT-2 (RNG-CTRL-RVR40-BT) |
| Nominal System Voltage | 12V/24V (non-lithium auto-detect; lithium manual set) |
| Battery Input Voltage Range | 10V to 32V DC |
| Rated Charge Current | 40A |
| Rated Load Current | 20A |
| Max Solar Input Power | 12V: 520W / 24V: 1040W |
| Max Solar Input Voltage (Voc) | 100V DC |
| MPPT Operating Voltage Range | 17V to 100V DC |
| MPPT Tracking Efficiency | >99% |
| Peak Conversion Efficiency | 98% |
| Self-Consumption | ≤100mA @12V / ≤58mA @24V |
| Battery Types | AGM, Gel, Flooded, Sealed, Lithium (LFP), User-defined |
| Temperature Compensation | Non-lithium: -3mV/°C/2V; Lithium: none |
| Grounding | Common Negative |
| Communication | RS485 Modbus (BT-2 Bluetooth module included) |
| Max Cable Size | 6 AWG to 8 AWG |
| Enclosure Rating | IP32 (dry indoor installation) |
| Operating Temperature | -35°C to 45°C (-31°F to 113°F) |
| Dimensions | 238 x 172 x 77 mm (9.38 x 6.78 x 3.05 in) |
| Weight | 2.0 kg (4.4 lb) |
| Certifications | CE, FCC Part 15 Class B, RoHS, RCM |
| Warranty | 3-year material and workmanship |
Connect the controller to the battery first, then set the correct battery type using the arrow keys before connecting solar. Keep PV open-circuit voltage below 100V. The IP32 enclosure is for dry, protected indoor installation. Make sure the controller is powered on before pairing the BT-2 module.
Choose the Renogy Rover Li 40A MPPT Solar Charge Controller with BT-2 Bluetooth Module for reliable, high-efficiency 12V/24V solar charging with low-temperature protection, lithium activation, and app-based wireless monitoring included — a proven workhorse for larger RV, marine, and off-grid systems.
| brands | SolarNova |
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