---
product_id: 48881458
title: "Renogy 40A 12/24V MPPT Solar Charge Controller Bluetooth Solar Charge Controller with LCD Screen for AGM, Gel and Lithium Batteries"
brand: "renogy"
price: "209518CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Renogy"
url: https://www.desertcart.sn/products/48881458-renogy-40a-12-24v-mppt-solar-charge-controller-bluetooth-solar
store_origin: SN
region: Senegal
---

# 40A max current output Bluetooth remote monitoring Supports AGM, Gel & Lithium batteries Renogy 40A 12/24V MPPT Solar Charge Controller Bluetooth Solar Charge Controller with LCD Screen for AGM, Gel and Lithium Batteries

**Brand:** renogy
**Price:** 209518CFA
**Availability:** ✅ In Stock

## Summary

> 🔆 Power your future smarter, safer, and connected.

## Quick Answers

- **What is this?** Renogy 40A 12/24V MPPT Solar Charge Controller Bluetooth Solar Charge Controller with LCD Screen for AGM, Gel and Lithium Batteries by renogy
- **How much does it cost?** 209518CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/48881458-renogy-40a-12-24v-mppt-solar-charge-controller-bluetooth-solar)

## Best For

- renogy enthusiasts

## Why This Product

- Trusted renogy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **4-Stage Safe Charging:** Tailored charging cycles protect and extend your battery life 🔋
- • **Full System Protection:** Built-in safeguards guard against overload, short circuits, and reverse polarity 🛡️
- • **Maximize Solar Efficiency:** 99% tracking & 98% conversion efficiency means you never waste a ray ⚡
- • **Smart Auto Voltage Detection:** Seamlessly switches between 12V and 24V systems for hassle-free setup 🔄
- • **Real-Time Bluetooth Monitoring:** Track your solar power performance anytime, anywhere via the Renogy DC Home app 📱

## Overview

The Renogy 40A MPPT Solar Charge Controller optimizes solar energy harvesting with up to 99% tracking efficiency and 98% conversion efficiency. Compatible with 12V and 24V systems, it supports AGM, Gel, and Lithium batteries with advanced 4-stage charging and comprehensive system protection. Bluetooth connectivity and an LCD screen enable real-time monitoring and easy customization, making it an essential upgrade for efficient, reliable solar power management.

## Description

Renogy 40A 12/24V MPPT Solar Charge Controller Bluetooth Solar Charge Controller with LCD Screen for AGM, Gel and Lithium Batteries: desertcart.co.uk: Business, Industry & Science

Review: Good product - Works as it should and kept a 110ah AGM battery toped up with a 200w panel in heavy cloud for a week, brilliant.
Review: Good quality product - simple to fit and use.

## Features

- Maximum power point tracking (MPPT): The Renogy MPPT solar charge controller ensures that every drop of the available current is flushed out of your modules and used for storage. Tracking efficiency reaches 99% and conversion efficiency reaches 98%.
- Automatic detection: the intelligent controller can automatically detect from 12 V / 24 V DC system voltages (lithium battery should be adjusted manually). The LED indicators show the solar charging and battery operation information, customizable parameters and error codes.
- 【4-stage safe charging】Renogy 40Ah charge controller has 4-stage charging (majority, increasing, floating and equalisation) of lead-acid batteries and 2-stage charging (most and increase) for lithium batteries as well as lithium reactivation.
- Full system protection: the self-diagnosis function can assess and protect your system from reverse polarity, overcharging, over-discharge, overload, short circuit and reverse current
- Remote monitoring: The RS232 communication port allows the Renogy Rover to communicate with the Renogy BT-1 Bluetooth module, which allows you to monitor the status and productivity of your panels via the Renogy DC Home app.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01MSYGZGI |
| Best Sellers Rank | 21,606 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 19 in Solar & Wind Energy MPPT Controllers |
| Brand | Renogy |
| Colour | Black |
| Country Of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 2,822 Reviews |
| Display Type | LCD |
| Global Trade Identification Number | 00816360024651 |
| Included Components | Charge Controller and Bluetooth |
| Item Dimensions L x W x H | 17.3L x 7.2W x 23.8H centimetres |
| Item Weight | 1.1 Kilograms |
| Item height | 2.85 inches |
| Item weight | 1.1 Kilograms |
| Manufacturer | Renogy |
| Material | Plastic |
| Product dimensions | 17.3L x 7.2W x 23.8H centimetres |
| UPC | 810009719328 816360024651 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts (DC) |

## Product Details

- **Colour:** Black
- **Brand:** Renogy
- **Voltage:** 12 Volts (DC)
- **Product dimensions:** 17.3L x 7.2W x 23.8H centimetres
- **Material:** Plastic

## Images

![Renogy 40A 12/24V MPPT Solar Charge Controller Bluetooth Solar Charge Controller with LCD Screen for AGM, Gel and Lithium Batteries - Image 1](https://m.media-amazon.com/images/I/41qGGlWGcQL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: X How many 100 watt panels can I fit to this controller please**
A: Hello,the maximum solar input power is 520W if your system voltage is 12v. If your system voltage is 24v, the max solar input power is 1040W. -SL

**Q: Can anyone confirm if this is suitable for sealed calcium technology batteries**
A: Surely a sealed lead acid and a sealed calcium battery are of similar type when it comes to charging. The reason you have different charging modes on a charge controller is so that the charger knows the peak and low charge levels. This is so that the controller doesn't run a lead acid battery below 40% or so. Lithium you can deplete 100% of the charge and you will not damage the battery. Lead acid has what we call a memory in the chemistry world. Basically the electrons cannot be be packed tightly together in the lead acid mixture. It fives off an effect that the battery wont hold as much charge anymore after being discharged 100%. Long answer but I would say this will work on a sealed calcium battery as they are the same as a lead acid battery.

**Q: Can I set the mximum battery voldtage at which the charger stops receiving amps? How? Thanks**
A: Sorry....
Just as a "PS" to this....
I'm wondering what you are trying to " manage" ???? 
in 99.9% of all cases, your leisure battery's will always be 12 volt....therefore, your question should have more been about wattage, rather then voltage perhaps  ??
Regards Dee......

**Q: can I connect 24v ( 2 x 100watt 12v in series) panels to this controller, and still have it charge a 12v battery bank?**
A: Maybe you did it and it worked maybe it didn’t however choosing the correct solar charge controller is more than just the wattage of the panels and the voltage of the battery bank

The person that commented about the voltage being higher than 12v is correct in that and it will be however they are absolutely wrong saying that you need to have 12v coming out of your panels to charge your batteries using these charge controllers

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by D***R on 27 June 2025*

Works as it should and kept a 110ah AGM battery toped up with a 200w panel in heavy cloud for a week, brilliant.

### ⭐⭐⭐⭐⭐ Good quality product
*by B***E on 20 April 2025*

simple to fit and use.

### ⭐⭐⭐⭐ Works Well, Confusing Keypad, BIG!
*by T***D on 31 January 2023*

I have recently heavily invested in a D-I-Y solar setup due to the ever increasing energy costs. Initially i went for the all in one solution with a true solar generator. Just recently however i needed to replace my car batteries and decided rather than throw out the older ones i would look to purchase a charge controller and inverter and try and make use of them. I have a 600w fixed array so i needed a decent amperage controller, the 40amp one seemed ideal. Having done a ton of research i really wanted to purchase a Victron controller but they are super expensive and currently out of my budget. As a result i decided to go for this Renology. My set up is parallel only so my voltage is way under what this controller can handle. At this time i have only connected this controller to a single 200w panel for testing. The charge controller is huge! It also has a good weight to it. The instructions aren't great if i am being honest and i did find the on screen menu display very confusing, as are the button pushes to cycle through the menus. Having also purchased the BT1 Bluetooth model i found the controller much easier to set up/monitor in the DC Home App. I have an AGM battery and the instructions advise setting this as SLD, however what i found was that the charging voltage was not enough and the battery rarely got about 75%, long term this could damage the battery so i did some more research. Others were advising to set a custom user profile and set the Voltage at 14.7 so this is what i did. I will monitor to see if this has an improvement on SOC. The DC home app is ok, some of the features don't work for me, such as charge time remaining etc, which is disappointing. I can however see the solar/battery volts and wattage. The Bluetooth is a bit rubbish, you have to continuously quit the app to get it to connect, hopefully this can be addressed in future app updates. One other thing i would have like to have seen in the app is push notifications at user set intervals advising on SOC, however this does not seem to be available. One additional thing that confused me was the model details of this controller, if you look at the Renology website it states that in order to charge LIFEPO4 batteries you need the LI Rover, the amazon listing does not mention 'LI' however it does state it will charge lithium. Luckily when the controller arrived the serial number label does indeed state LI Rover which is just as well as I have ordered a lifepo4 battery from Renology. Overall i am happy with this charge controller, It appears to charge my battery well and the app, whilst basic is good for semi-remote monitoring via bluetooth. Hopefully further updates of the app will enable even more functionality. I hope that you found my review helpful

## Frequently Bought Together

- Renogy Rover 40 Amp 12V/24V DC Input MPPT Solar Charge Controller Auto Parameter Adjustable LCD Display Solar Panel Regulator fit for Gel Sealed Flooded and Lithium Battery
- Renogy 2000W Pure Sine Wave Inverter 12V DC to 120V AC Converter for Home, RV, Truck, Off-Grid Solar Power Inverter 12V to 110V with Built-in 5V/2.1A USB / Hardwire Port, Remote Controller
- Renogy 500A Battery Monitor with Shunt, High and Low Voltage Programmable Alarm, Range 10V-120V up to 500A, 20ft Shielded Cable, Compatible 12V Lithium Sealed, Gel, Flooded Batteries,Black

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-24*