---
product_id: 10376690
title: "Competition Solar 47701 20-Watt Amorphous Solar Panel with 8 Amp Charge Controller and 12-Volt Battery Charger"
brand: "nature power"
price: "HK$1552"
currency: HKD
in_stock: true
reviews_count: 8
url: https://www.desertcart.hk/products/10376690-competition-solar-47701-20-watt-amorphous-solar-panel-with-8
store_origin: HK
region: Hong Kong
---

# 8A Charge 20W Power Works in All Light Competition Solar 47701 20-Watt Amorphous Solar Panel with 8 Amp Charge Controller and 12-Volt Battery Charger

**Brand:** nature power
**Price:** HK$1552
**Availability:** ✅ In Stock

## Summary

> 🌞 Power Up Your Adventures!

## Quick Answers

- **What is this?** Competition Solar 47701 20-Watt Amorphous Solar Panel with 8 Amp Charge Controller and 12-Volt Battery Charger by nature power
- **How much does it cost?** HK$1552 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/10376690-competition-solar-47701-20-watt-amorphous-solar-panel-with-8)

## Best For

- nature power enthusiasts

## Why This Product

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

## Key Features

- • **Stay Charged:** Includes an 8-Amp charge controller for efficient battery management.
- • **Built to Last:** High-quality amorphous solar material ensures durability and reliability.
- • **Harness the Sun:** Maximize energy with 20 Watts of power, even on cloudy days!
- • **Nighttime Protection:** Built-in blocking diode prevents battery discharge after dark.
- • **Versatile Connectivity:** Comes with a 9.8-foot cable and battery clamps for easy setup.

## Overview

The Competition Solar 47701 is a robust 20-Watt amorphous solar panel designed to perform in all light conditions, featuring an 8 Amp charge controller and a 9.8-foot cable with battery clamps for seamless connectivity. Its built-in blocking diode ensures your battery stays charged even at night.

## Description

The Competition Solar 20-Watt Solar Battery Charger takes the sun's energy and turns it into electric current. This solar panel is lightweight and versatile and can be used with any rechargeable 12-Volt battery to provide a portable power solution for keeping your RV, golf cart, camper, boat and any other application charged. Mounting hardware is included.

## Features

- Rated up to 20-Watt/1300mA per hour of sunlight
- High quality amorphous solar material will work in all light conditions even on overcast days
- Built-in blocking diode protects battery discharge at night
- 8-Amp charge controller is included
- Extra long 9.8-Foot cable with battery clamps included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Maximum Voltage | 12 Volts |
| Maximum Power | 20 Watts |
| Amperage Capacity | 8 Amps |
| Item Weight | 4.4 Pounds |

## Product Details

- **Brand:** Nature Power
- **Material:** Amorphous Silicon, Tempered Glass, Aluminum
- **Item Weight:** 4.35 Pounds
- **Efficiency:** High Efficiency
- **AC Adapter Current:** 8 Amps

## Images

![Competition Solar 47701 20-Watt Amorphous Solar Panel with 8 Amp Charge Controller and 12-Volt Battery Charger - Image 1](https://m.media-amazon.com/images/I/711KPA6ymIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Virtually Idiot Proof
*by S***O on January 11, 2018*

Very easy to use. I keep a marine deep cycle battery 205 reserve hours (big one) charged for the boat. This is my second Comp Solar 20 Watt panel. Works great all the time. Make sure to mount it securely ( I made some simple brackets so I could use existing holes in my steel building) or the wind will blow it around and damage it.

### ⭐ CRAP!  Stopped working after several months….. DO NOT bother buying!
*by T***A on June 21, 2021*

Doesn’t work.

### ⭐⭐ Bad Panels. Bad Controller. Bad Deal.
*by J***M on September 22, 2017*

With these being amorphous cells I was hoping that get some power to a spot on my finca where I have little direct sun largely because up in the mountains most the days are cloudy. I purchased one and like so many others, it came cracked. However, the cracks couldn't be felt on the surface so I applied a thin layer of clear silicone and proceeded.First a little. A maximum potential a 20W cell charging a 12-volt system should produce 20W / 12V = 1.67 amps. I figured under a cloudy sky we might get maybe 0.8amps which is enough for my application. I mounted the cell where it received about six hours of direct sun (or sun behind the clouds) but the battery never seemed to stay charged. The charge controller indicated it was charging, other times it indicated the battery was charged but when I measured it it was only at 12.4 volts. The charge controller wasn't working well so I replaced with with another that I knew worked. Still the battery was never charged. When the controller indicated the battery was charged I could unplug the battery side, plug iit back in and it would then indicate ti was charging. I never saw the battery over 12.4 volts. Maybe this is the cut-out for the controller, but why?I did order six of these to use for another application and when they arrived I connected them to a MPPT charge controller in series to see what they could produce. First of all of the six cells, three of them were broken, two of them so severely that that wouldn't stay waterproof even with the silicone fix. But I did hook three of the panels up to the controller and placed the panels in DIRECT sun on a cloudless day. The three panels, using an MPPT controller, generated approximately 1.4 amps which is only 0.46 amps each at ideal conditions for the panels (they were cool when I took the reading). I also put them in parallel with the same controller and only received 1.19 amps (no surprised since in this configuration the MPPT controller can't harvest the full voltage).A panel this big ought to produce more than an 1 each giving me something like 2.5 - 3.0 amps in bright sun. Bad conversion? Unknown but these panels produce far below what they should. I attached photos of the three panels in the sun on the MPPT controller and the amp reading on the controller. Under a cloudy sky they produce even less - and they should be close since they are amorphous.For the size of the panel you're better off getting a 40W monocrystaline panel then these. Bad deal.

## Frequently Bought Together

- Competition Solar 47701 20-Watt Amorphous Solar Panel with 8 Amp Charge Controller and 12-Volt Battery Charger
- POWOXI Solar Panels Charge Controller, 8A Battery Regulator for 12V Solar Battery Charger, Solar Battery Maintainer and 12 Volt Batteries Power Kit

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-09*