---
product_id: 557950803
title: "20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation"
brand: "ghb"
price: "€ 127.75"
currency: EUR
in_stock: true
url: https://www.desertcart.com.cy/products/557950803-20a-12v-24v-solar-charge-controller-auto-switch-lcd-intelligent
store_origin: CY
region: Cyprus
---

# Comprehensive multi-layer protection Built-in energy-saving backlight LCD 20A rated discharge current 20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation

**Brand:** ghb
**Price:** € 127.75
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up smarter, live greener, and never miss a charge!

## Quick Answers

- **What is this?** 20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation by ghb
- **How much does it cost?** € 127.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/557950803-20a-12v-24v-solar-charge-controller-auto-switch-lcd-intelligent)

## Best For

- ghb enthusiasts

## Why This Product

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

## Key Features

- • **Robust 20A Output:** Power your devices confidently with a high-capacity 12V/24V controller and 3A USB output.
- • **Smart Auto-Switching:** Seamlessly manage battery connections with intuitive polarity detection and automatic load control.
- • **Advanced Safety Suite:** Stay worry-free with overload, short circuit, lightning, and reverse polarity protections.
- • **Optimized Battery Health:** PWM & WPC charging modes extend battery lifespan while maximizing solar efficiency.
- • **Crystal-Clear LCD Display:** Instantly monitor all charging parameters with a sleek, power-efficient backlit screen.

## Overview

The GHB 20A Solar Charge Controller is a compact, intelligent regulator designed for 12V/24V solar systems. Featuring a vivid energy-saving LCD, automatic polarity detection, and a 20A rated discharge current, it ensures efficient, safe charging with multiple protections including overload, short circuit, and lightning. Ideal for powering DC lamps and USB devices, it optimizes battery life with advanced PWM & WPC modes.

## Description

20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation

## Features

- LCD Screen Display >> This solar panel charger controller with LCD to display all parameters, the LCD has rich contents, the users can intuitively know the working condition of the controller. The LCD display is with built-in energy-saving backlight LCD, display better, more clear, more beautiful, more modern and more power-efficient.
- Fully Automatic >> This solar panel regulator with output switch, intelligent control, easy to operate,to connect the controller and the battery by cables with right polarity. The battery indicator light on the controller will be on if successfully connected, otherwise, to check and reconnect.
- Power-efficient >> Microcontroller digital accuracy, when it's charging,the arrow between the panel icon and the battery icon will be flashes fastly,when the battery was full charge,it will be slow flashed,will stop charging,the function of the controller is to protect the voltage overshoot and discharge. Available for DC lamp and phone charging. A key to open and close the load.
- Rated Discharge Current >> Solar charge controller 12V 20A; USB Output Voltage: 5V; Total USB Output Current: 3A; DC Output Voltage: 12V. To connect your load and the cables with right polarity and then connect with the load output port of the controller. Pay special attention to + - polarity to avoid reversed connection, otherwise, your load may be damaged.
- Protection Functions >> Overload and Short circuit protection, Lightning protection, Under-voltage protection, Over-charging protection, Reverse Polarity protection charge controllers for solar panels. Use PWM&WPC mode, improve system efficiency and prolong the life span of the battery.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Smile&Satisfaction |
| Charging Port Type | USB, DC |
| Country of Origin | USA |
| Item model number | CMG-2420 |
| Product Dimensions | 13 x 10.01 x 3 cm; 281 g |
| ASIN | B01LZZMDSQ |

## Product Details

- **Colour:** Black
- **Brand:** GHB
- **Voltage:** 12 Volts
- **Display Type:** LCD with backlight
- **UPC:** 611864444666

## Images

![20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation - Image 1](https://m.media-amazon.com/images/I/71umFD3YZPL.jpg)
![20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation - Image 2](https://m.media-amazon.com/images/I/71A2W0g0wBL.jpg)
![20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation - Image 3](https://m.media-amazon.com/images/I/61B1lDFHISL.jpg)
![20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation - Image 4](https://m.media-amazon.com/images/I/613FciY6eAL.jpg)
![20A 12V 24V Solar Charge Controller Auto Switch LCD Intelligent Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation - Image 5](https://m.media-amazon.com/images/I/61BaImNUvML.jpg)

## Questions & Answers

**Q: Ok asking my question again. .... How many working amps? Didn't know children answered these too. Lol**
A: LOL, Dana is not up to date on facts. I have a 8 gauge wire connecting both the panels and the batteries. 20A charge and usage through the "load" terminals. Also if you series 2 panels instead of parallel your amps drop by half and voltage increases to 24v, series 2 batteries and get a step down transformer on the load and you get more working amps at the transformer while using smaller gauged wire on the panels and batteries.

**Q: Can I hook up a 750 watt inverter to the Load terminals of the controller?**
A: No you cannot. As previously stated, I’d hook the inverter straight to battery although you can hook a relay in series between the battery and inverter and use the controller load to power the coil of the relay. This will allow the controller to shut down the inverter in case of any problems. Use a relay rated for at least 70Amps for a 750 watt inverter.

**Q: Can this controllers output voltage  be set to 24 vdc?  i need to series two twelve volt batteries and supply a system with 24 vdc.**
A: The information on specs are unclear but it does work.  I have two 12 volts in series on my boat in flat storage with no electrical around.  I bought one 24V solar panel, connected to this controller and it works great. The serttings are automatic if you follow directions. Here is my summary for my fishing club:
There’s math involved to determine solar panel size so hang in there.
Each battery is 12 Volts rated at 90 amp hours (AH).  Multiply volts times amps to get total watts. 12V X 90ah = 1080 watts each, times 2 batteries = 2160. That’s total watts from zero to full charge.  Since you can’t run batteries to zero and expect them to work, only half of the power is usable.  Therefore, my needs are half of the 2160 total = 1080 watts.  I decided I wanted to get fully charged batteries after 2 days.  There is good sunlight on my location an average of 6+ hours per day so I need a panel large enough to reach 1080 watts in 12 hours charging time.  Watts divided by hours, 1080/12 gets me my panel size of 90.  Solar panels and connections are subject to voltage loss due to dust, connections, shadows, etc.  Figure 20%.  I need 120 watts output in a 24-volt panel (match my battery voltage).  I found the components below. A 24 volt, 150-watt panel, a controller (don’t want to overcharge) and special solar wiring and connectors all on Amazon.

**Q: Can you set this to charge the battery once it gets to a certain level?**
A: It will charge the battery and taper off when the battery is fully charged. It won't charge a dead battery or work well if the battery is in a low charge state.

## Frequently Bought Together

- GHB 20A 12V 24V Solar Charge Controller Auto Switch LCD Solar Panel Battery Regulator Charge Controller Overload Protection Temperature Compensation
- Southco R4-EM-11-161 Electronic Rotary Push-to-Close Latch, Auto Relock, with Latch Status Microswitch, Non-Sealed Connector, 1/4-20 Thread, Steel Housing, Zinc Plate, Bright Chromate

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-28*