---
product_id: 368996547
title: "RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground"
brand: "rich solar"
price: "¥33689"
currency: JPY
in_stock: true
reviews_count: 5
category: "Rich Solar"
url: https://www.desertcart.jp/products/368996547-rich-solar-20-amp-12v-24v-dc-input-mppt-solar
store_origin: JP
region: Japan
---

# 20A max output Clear LCD with tactile buttons Supports 12V/24V auto-detection RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground

**Brand:** rich solar
**Price:** ¥33689
**Availability:** ✅ In Stock

## Summary

> 🔆 Charge smarter, live freer — power your off-grid lifestyle with confidence!

## Quick Answers

- **What is this?** RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground by rich solar
- **How much does it cost?** ¥33689 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/368996547-rich-solar-20-amp-12v-24v-dc-input-mppt-solar)

## Best For

- rich solar enthusiasts

## Why This Product

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

## Key Features

- • **Battery Versatility 🔋:** Custom profiles for Lithium, AGM, GEL, and Flooded batteries keep your system optimized.
- • **Maximize Solar Power ⚡:** 99% MPPT tracking accuracy ensures you never miss a ray.
- • **Plug & Play Simplicity 🔧:** Intuitive LCD and tactile buttons make setup effortless—even for first-timers.
- • **Future-Ready Connectivity 📶:** Optional Bluetooth module lets you monitor your system wirelessly when you upgrade.
- • **Built Rugged for Adventure 🚐:** Compact vertical design fits perfectly in RVs, boats, and off-grid setups.

## Overview

The RICH SOLAR 20 Amp MPPT Solar Charge Controller delivers industry-leading 99% tracking accuracy and 98% conversion efficiency for 12V/24V systems. Designed with a rugged, compact vertical layout, it fits seamlessly into RVs, boats, and off-grid power cabinets. Featuring an easy-to-read LCD and tactile buttons, it supports multiple battery types with customizable charging profiles and advanced safety protections. Optional Bluetooth connectivity future-proofs your setup, while battery recovery mode extends battery life, making it a reliable choice for millennial professionals seeking efficient, hassle-free solar power management.

## Description

RICH SOLAR 20A MPPT Solar Charge Controller – High-Efficiency 12V/24V Auto Detection, 99% Tracking, Rugged Design for RVs, Boats & Off-Grid Systems

Review: I have been using my unit for 4 days now. I have an error message (E15) and their manual only lists to E13!! I have tries to call multiple times, I emailed, I tried their live chat, no one is answering and I am left with no power!! This is not the headache, or the product, you want. Trust me!
Review: did the job nicely, only draw back is if you blow the fuse inside it you have to compleatly take it out of your system and dismantle it, then add in a new fuse. other then that its good. terminals are sturdy and can handle the proper guage wire, draw back can only do 20 amp output for all the models. input looks to be flexable

## Features

- 【Built to Last】Rugged wall-mount design with vertical layout fits perfectly in RV bays, boats, and off-grid power cabinets
- 【High-Efficiency MPPT Tech】Auto-detects 12V/24V systems with 99% tracking accuracy and 98% conversion efficiency for maximum solar output
- 【Simple, Intuitive Control】Bold tactile buttons and a clear LCD screen make setup and monitoring easy—even for first-time DIYers
- 【Versatile Battery Support】Works with Lithium, AGM, GEL, and Flooded batteries, with customizable charging profiles and temp sensor input
- 【Advanced Safety Protection】Full electronic safeguards against overcharge, reverse polarity, short circuit, and overload
- 【Optional Bluetooth Ready】RS232 port supports external BT-1 module for wireless app monitoring when you're ready to upgrade
- 【Battery Recovery Mode】Revives deeply discharged batteries, extending lifespan and preventing costly replacements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079ZM9MR6 |
| Batteries required | No |
| Customer Reviews | 4.4 4.4 out of 5 stars (495) |
| Date First Available | 1 April 2018 |
| Display type | LCD |
| Included components | 1 x 20 Amp MPPT Solar Charge Controller |
| Item model number | RS-MPPT20 |
| Item weight | 3.08 Pounds |
| Manufacturer | RICH SOLAR |
| Operating temperature | 113 Degrees Fahrenheit |
| Product Dimensions | 20.98 x 15.09 x 5.94 cm; 1.4 kg |
| UPC | 795891141337 |

## Product Details

- **Brand:** RICH SOLAR
- **Colour:** Black
- **Material:** Die-cast aluminum
- **Product dimensions:** 15.1L x 5.9W x 21H centimeters
- **Voltage:** 24 Volts

## Images

![RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground - Image 1](https://m.media-amazon.com/images/I/61P+3eT5XQL.jpg)
![RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground - Image 2](https://m.media-amazon.com/images/I/71dLMLvzQjL.jpg)
![RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground - Image 3](https://m.media-amazon.com/images/I/71N4owRQbTL.jpg)
![RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground - Image 4](https://m.media-amazon.com/images/I/614mD1lG+OL.jpg)
![RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground - Image 5](https://m.media-amazon.com/images/I/616Al+iG-rL.jpg)

## Available Options

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

## Questions & Answers

**Q: How accurate is the battery voltage reading?**
A: I have not put my meter on the batteries to test it I would be sure you got nothing to worry about

**Q: Is it safe to use the generator in my rv or the truck alternator when the solar system is attached?  do i need to unhook if there are other charging g**
A: Yes, it is safe for a couple of reasons. When the controller sees the voltage of the system is high (like when you have turned on your generator), it backs off and stops sending power out. I have several things attached to ur system - a generator, and alternator on the main engine, and a wind generator. No issues at all.

**Q: Is the li setting all i need to do to run lithiums or do i need to do anything else?**
A: Yes, that is the setting for Lithium. The individual settings automatically set the other settings optimally for the selected type of battery. 
In order to change any setting, you would need to select the custom setting, and then you would be able to set your own. However, even in custom setting, there are default setting already applied.

**Q: What software can I use to use PC with controller**
A: Relevant software has to be provived only if you have USB monitoring cables which will be connected to your PC, if you have bought MPPT with the cable, pls give me your email address so that we will send you our software, you may install to your computer. Thank you!

## Customer Reviews

### ⭐ Review
*by A***A on 9 June 2021*

I have been using my unit for 4 days now. I have an error message (E15) and their manual only lists to E13!! I have tries to call multiple times, I emailed, I tried their live chat, no one is answering and I am left with no power!! This is not the headache, or the product, you want. Trust me!

### ⭐⭐⭐⭐⭐ Review
*by D***D on 9 December 2025*

did the job nicely, only draw back is if you blow the fuse inside it you have to compleatly take it out of your system and dismantle it, then add in a new fuse. other then that its good. terminals are sturdy and can handle the proper guage wire, draw back can only do 20 amp output for all the models. input looks to be flexable

### ⭐⭐⭐⭐⭐ Review
*by W***8 on 16 June 2025*

Relatively easy installation. Operates as designed. Keeping my solar battery well charged.

## Frequently Bought Together

- RICH SOLAR 20 Amp 12V/24V DC Input MPPT Solar Charge Controller with LCD Display Solar Panel Regulator for Gel Sealed Flooded and Lithium Battery Negative Ground
- ECO-WORTHY 20FT 10AWG Solar Panel Extension Cable with Female and Male Connector for Solar Panels, Solar Controllers (Red + Black)
- ECO-WORTHY Solar Connectors Y Branch Parallel PV Adapter Cable Wire Plug Tool Kit for Solar Panel(M/FF+F/MM)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/368996547-rich-solar-20-amp-12v-24v-dc-input-mppt-solar](https://www.desertcart.jp/products/368996547-rich-solar-20-amp-12v-24v-dc-input-mppt-solar)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-03*