---
product_id: 37166100
title: "4W Poly Crystlline"
brand: "sunway solar"
price: "¥11438"
currency: JPY
in_stock: null
url: https://www.desertcart.jp/products/37166100-4w-poly-crystlline
store_origin: JP
region: Japan
---

# 4W Power Output Solar-Powered Reverse Charging Protection 4W Poly Crystlline

**Brand:** sunway solar
**Price:** ¥11438
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Power Up Your Ride with Solar Style!

## Quick Answers

- **What is this?** 4W Poly Crystlline by sunway solar
- **How much does it cost?** ¥11438 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/37166100-4w-poly-crystlline)

## Best For

- sunway solar enthusiasts

## Why This Product

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

## Key Features

- • **User-Friendly Design:** Easy installation with suction cups and a plug-and-play setup.
- • **Peace of Mind Charging:** Built-in diode prevents reverse charging, ensuring your battery's safety.
- • **Universal Compatibility:** Perfect for all 12V rechargeable batteries—cars, boats, RVs, and more!
- • **Durable & Low Maintenance:** Built with ultra-clear PV glass and robust ABS plastic for long-lasting use.
- • **Eco-Friendly Energy Solution:** Harness the sun to keep your batteries charged and ready!

## Overview

The Sunway Solar Car Battery Trickle Charger & Maintainer is a portable 12V solar panel power kit designed to keep your automotive batteries charged and maintained. With a maximum power output of 4 watts, it is compatible with various battery types and features a user-friendly design for easy installation. Built with durable materials and equipped with reverse charging protection, this eco-friendly solution is perfect for any vehicle, ensuring you never face a dead battery again.

## Description

Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Kit Portable Backup for Car Automotive RV Marine Boat Motorcycle Truck Trailer Tractor Powersports Snowmobile Farm Equipment

## Features

- [Solar Panel Power Up To 4W]--Keep your 12 Volt batteries topped off with this solar battery trickle charger ,which helps to manage 12v battery drain in all seasons. Designed to compensate for small, steady battery drains from the vehicle's clock or alarm system.
- [Simple And Very Easy to Use]--This solar trickle charger will NOT overcharge the battery or cause any damage if the battery capacity is 20Ah or greater, .The solar charger panel mounts easily to the windshield or dash and conveniently plugs into your car's 12 volt cigarette lighter! Suction cups available with the solar charger. {If you need a Quick Connect And Disconnect Extension Cable For this solar charger,Please search the ASIN:B06X6LJTD6.}
- [Stronger and Durable]--This solar powered battery charger is Covered with ultra clear PV glass which is more efficient and also with Durable ABS plastic housing which makes this solar panels charger more stronger. Low Maintenance!
- [For Any Rechargeable 12Volt Batteries]--This solar battery trickle charger is the eco-friendly way to maintain and safely charges any 12volt Wet, Gel, SLA,AGM, LiFePO₄,Lithium-Ion and Deep Cycle batteries. It can maintain the charge of any cars, trucks, marines, motorcycles , tractors, ATVs, snowmobiles, boats and personal water crafts or RV 12 volt battery!
- [Reverse Charging Protection]--With BUILT-IN DIODE for prevents reverse charging from batteries.With a 12volt LED charge indicator. The Led light up when it is charging. The solar charger maintainer Includes cigarette lighter adapter and alligator battery terminal clamps. We offer 12-Month warranty and good customer service.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Sunway Solar |
| Material | Glass, ABS Plastic |
| Product Dimensions | 13.9"L x 5"W x 0.5"H |
| Item Weight | 1.4 Pounds |
| Connector Type | Cigarette Lighter Plug, Battery Clamps |
| Included Components | Power Cable |
| Maximum Voltage | 12 Volts |
| Maximum Power | 4 Watts |
| UPC | 611550648699 |
| Manufacturer | Sunway Solar |
| Model | 3W solar trickle charger for battery |
| Item Weight | 1.44 pounds |
| Country of Origin | China |
| Item model number | 4W solar trickle charger for battery |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | SWS-C3W001 |
| Voltage | 15 Volts |
| Wattage | 4 watts |

## Product Details

- **Brand:** Sunway Solar
- **Material:** Monocrystalline Silicon, Tempered Glass, Abs Plastic, Aluminum
- **Product Dimensions:** 13.9"L x 5"W x 0.5"H
- **Item Weight:** 1.4 Pounds
- **Included Components:** Power Cable

## Images

![4W Poly Crystlline - Image 1](https://m.media-amazon.com/images/I/71UYd+uk0SS.jpg)
![4W Poly Crystlline - Image 2](https://m.media-amazon.com/images/I/81e1eKftSsS.jpg)
![4W Poly Crystlline - Image 3](https://m.media-amazon.com/images/I/71P+pE4CfBS.jpg)
![4W Poly Crystlline - Image 4](https://m.media-amazon.com/images/I/71VQijIrrCS.jpg)
![4W Poly Crystlline - Image 5](https://m.media-amazon.com/images/I/61FDwEdBS8S.jpg)

## Available Options

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

## Questions & Answers

**Q: Can i use this 12 volt sports solar charger outdoors?**
A: Yes, this 12 V power sports solar charger is weatherproof. But it should not be submerged in water.

**Q: Is this unit water proof?**
A: The waterproof performance of this sunway solar trickle charger is IP44.The charger can withstand splashing or light rain, but is not fully waterproof and should not be submerged or left outside during rainfall.The solar charger panel can be mounted to the windshield.

**Q: How is this solar charger? Does it really waterproof?**
A: This trickle battery charger solar charger is weatherproof. But it should not be submerged in water.

**Q: can it be in the rain?**
A: Ours is for the boat just wipe it after rain or weekly for dust. If that's not an option im sure it will be fine.

## Frequently Bought Together

- Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Kit Portable Backup for Car Automotive RV Marine Boat Motorcycle Truck Trailer Tractor Powersports Snowmobile Farm Equipment
- OYMSAE 25Feet SAE to SAE Extension Cable Quick Disconnect Connector 16AWG,for Automotive,Solar Panel Panel SAE Plug(25FT(16AWG)), Charging Adapter

---

## 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/37166100-4w-poly-crystlline](https://www.desertcart.jp/products/37166100-4w-poly-crystlline)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*