---
product_id: 439861204
title: "Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile"
brand: "allto solar"
price: "77 Lei"
currency: RON
in_stock: false
reviews_count: 5
url: https://www.desertcart.ro/products/439861204-allto-solar-20w-12v-solar-trickle-charger-and-maintainer-pro
store_origin: RO
region: Romania
---

# LED Indicator 12V Compatibility 20W Power Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile

**Brand:** allto solar
**Price:** 77 Lei
**Availability:** ❌ Out of Stock

## Summary

> Charge into the Future! ☀️

## Quick Answers

- **What is this?** Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile by allto solar
- **How much does it cost?** 77 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/439861204-allto-solar-20w-12v-solar-trickle-charger-and-maintainer-pro)

## Best For

- allto solar enthusiasts

## Why This Product

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

## Key Features

- • **Visual Monitoring:** Stay informed with a clear LED indicator for battery status.
- • **All-Weather Durability:** Waterproof and splash-proof design ensures year-round performance.
- • **Effortless Installation:** Plug-and-play setup with included accessories for quick use.
- • **Universal Compatibility:** Perfect for a wide range of 12V batteries across various vehicles.
- • **Smart Charging Technology:** Harness the sun's power with advanced MPPT for 15% more efficiency!

## Overview

The Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro is a cutting-edge solar battery charger designed to efficiently charge and maintain 12V batteries across a variety of vehicles. Featuring a built-in MPPT charge controller, it optimizes power generation, ensuring at least 15% more efficiency than traditional models. With robust protections against overcharging and adverse weather conditions, this lightweight and portable charger is perfect for outdoor use, making it an essential tool for any vehicle owner.

## Description

20W 12Volt Solar Trickle Charger & Maintainer Pro with Built in MPPT Charge Controller  The solar powered trickle charger is perfect solution for charging 12 volt of batteries of Car, Automobiles, Motorcycle, ATVs, Boat trailer, RV Camper, Marine, Lawnmower, Water pump, Gate Opener, Jet Ski, Snowmobiles, Tractors etc and helping manage battery drain in all season when the battery is in the status of losing power and power shortage, maintaining the battery and extending its usage life.  WHY DO WE NEED A SOLAR TRICKLE CHARGER?  1) Batteries Naturally Discharge - Automotive batteries naturally discharge when not in use. 2) Vehicles Have a Small but Constant Battery Drain-Modern vehicles have upwards of 30 body control modules, which all take power from the battery, that is why the vehicles become discharge when not use for a long time. 3) Battery life is shortened if it is not kept charged-A 12V battery that is not correctly maintained above 12.4V can suffer from sulphation. Sulphation is the main cause of battery failure. This is why the battery dead if not used for a long time.  Packing Included  1x 20 Watt 12 volt solar trickle charger 1x Cigarette lighter adapter 1x SAE battery clip cable 1x Bare wire open end battery clip cable 4x Sunction cup 1x User manual

## Features

- 🌞【 SMART CHARGING 】 This portable solar charger transfer sunshine into electricity, charge and maintain your 12 volt battery in all seasons. Built-in MPPT charge controller optimize the performance of the solar battery charger and generates at least 15% more power than traditional PMW charge controller but also protect your batteries. Smart 3 stages charging allows better charging and maintaining battery at a stable level and keeping it in safe.
- 🌞【 FULL PROTECTIONS 】 Prevent the battery from over-charge, over-voltage, discharge, and short circuit, reversed polarity protection. Waterproof, splash-proof ETFE material to withstand rain and snow, no worry to mount it outside, completely maintenance-free.
- 🌞【 CHARGE VISUALIZATION 】 The LED indicator enables to visually monitor the working status of the 12v solar charger and battery conditions. 4 light status. Solid red : Error. Reverse polarity. Solid green: full charged. Blink red: activate( ready to charging battery); Blink green: sunshine is effective, not activate yet.
- 🌞【 WIDE COMPATIBILITY 】Can be widely used as a solar trickle charger and maintainer for multiple 12V DC batteries including Wet, Gel Cell, Flooded, Deep Cycle, Maintenance-free, AGM, Sealed, Lead-acid, LiFePO4 Lithium ion Battery of Car, Automobile, Vehicle, Boat, Trailer, RV Camper, Marine, Lawnmover, Gate opener, Golf cart, Water pump, Farmhouse equipments, Motorcycle, ATV, Tractors, Jet Ski, Phontoon etc.
- 🌞【 EASY INSTALLATION 】The included 3-piece SAE cable kit-cigarette lighter adapter, battery clips cable and bare ware open end clip cable, plug and play, makes connection to the battery a breeze. The package also includes 4 suction cups to meet your different installation needs, you can easily mount it on the front or back side of car windshield or dash to get the max sunlight for the solar car battery charger. Weighs only 2.5 pounds and measures 16.1 x 13.4inch, lightweight and portable.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Energy Specifications Met | Energy Star |
| Input Voltage | 20 Volts |
| Item Weight | 2.5 Pounds |

## Product Details

- **Brand:** Allto Solar
- **Item weight:** 2.5 Pounds
- **Specification met:** Energy Star
- **Input voltage:** 20 Volts
- **Manufacturer:** Allto Solar

## Images

![Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile - Image 1](https://m.media-amazon.com/images/I/81zlf1szvNL.jpg)
![Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile - Image 2](https://m.media-amazon.com/images/I/71+vxhPmjgL.jpg)
![Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile - Image 3](https://m.media-amazon.com/images/I/61JrrUegaAL.jpg)
![Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile - Image 4](https://m.media-amazon.com/images/I/71sI9bPCllL.jpg)
![Allto Solar 20W 12V Solar Trickle Charger & Maintainer Pro, 12 Volt Solar Battery Charger with Built in MPPT Charge Controller + Visual LED Indicator for Car, Boat, Motorcycle, RV, ATV, Automobile - Image 5](https://m.media-amazon.com/images/I/7124gUdLCaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Trying this out
  

*by A***R on Reviewed in the United States on 23 June 2022*

I am trying this out to maintain the battery charge on my 2008 Nissan Frontier. First impression was that the surface coating is not what I expected from solar panels, and it seems to be robust to protect from the elements. The green LED began flashing upon exposure to sunlight and the red LED started flashing when connected to the always on 12V port in my truck. The battery voltage before connecting was 12.18V and after connecting was 12.19V, which seems low, but I lack detailed understanding on how these chargers work. I would expect the voltage to rise slowly so I will continue to check and update. For now I will give 5 stars since it seems to be working based on LEDs.Update 6/27/22:My truck was hesitating to start before connecting this and would in some cases fail to crank. Now when connected the battery sits at around 12.3V. I started it up without hesitation and drove it around for 15 minutes then measured battery voltage in circuit at 12.47V, and then immediately connected the panel and it sank to 12.3V again. I think this has something to do with the maximum power point tracking of the solar charger, but I’m not well educated on the nuances of battery charging and solar control. It seems to be working for my purposes, so I will continue to use and update.

### ⭐⭐⭐⭐⭐ 







  
  
    Excellent
  

*by B***. on Reviewed in Saudi Arabia on 19 September 2022*

It works as advertised.

### ⭐⭐⭐⭐⭐ 







  
  
    If you have vehicle that sits a lot, this is for you!!
  

*by F***N on Reviewed in the United States on 7 November 2022*

Have cargo van for business with alarm system that texts if battery is running low. I ordered this after getting last text. Sometimes van can sit for two weeks and now I no longer have battery issues. Great product that keeps battery full.

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**Shop now:** [https://www.desertcart.ro/products/439861204-allto-solar-20w-12v-solar-trickle-charger-and-maintainer-pro](https://www.desertcart.ro/products/439861204-allto-solar-20w-12v-solar-trickle-charger-and-maintainer-pro)

---

*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-17*