---
product_id: 720388214
title: "Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping"
brand: "luvknit"
price: "¥9518"
currency: JPY
in_stock: true
category: "Luvknit"
url: https://www.desertcart.jp/products/720388214-solar-power-bank-20000mah-portable-charger-with-built-in-3
store_origin: JP
region: Japan
---

# Dual 5V/2.1A USB fast charging outputs 20000mAh high-capacity battery 24% efficient monocrystalline solar panel Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping

**Brand:** luvknit
**Price:** ¥9518
**Availability:** ✅ In Stock

## Summary

> ☀️ Stay Powered, Stay Ahead – Never Miss a Beat Outdoors!

## Quick Answers

- **What is this?** Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping by luvknit
- **How much does it cost?** ¥9518 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/720388214-solar-power-bank-20000mah-portable-charger-with-built-in-3)

## Best For

- luvknit enthusiasts

## Why This Product

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

## Key Features

- • **Built for the Wild:** IPX4 waterproof design and rugged ETFE panel ensure durability in all weather conditions.
- • **Ready Out of the Box:** Includes 4.9ft USB-C cable, carabiner hook, and hassle-free 12-month warranty for peace of mind.
- • **Power That Lasts All Day:** Massive 20000mAh battery keeps your devices charged through any adventure.
- • **Harness the Sun Like a Pro:** Premium monocrystalline solar panel converts up to 24% sunlight into reliable power.
- • **Charge Multiple Devices Fast:** Dual USB outputs with intelligent QC 3.0 technology deliver rapid, safe charging.

## Overview

The LUVKNIT Solar Power Bank combines a robust 20000mAh lithium polymer battery with a high-efficiency 10W monocrystalline solar panel, delivering up to 24% solar conversion. Featuring dual 5V/2.1A USB outputs with QC 3.0 fast charging, it supports a wide range of devices including smartphones, tablets, and smartwatches. Its IPX4 waterproof rating and durable ETFE construction make it perfect for camping and emergency use. The package includes a 4.9ft USB-C cable, carabiner, and a 12-month warranty, ensuring reliable power wherever you go.

## Description

Buy Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping: Portable Power Banks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- 𝐈𝐌𝐏𝐎𝐑𝐓𝐀𝐍𝐓: 𝐒𝐎𝐋𝐀𝐑 𝐈𝐒 𝐄𝐌𝐄𝐑𝐆𝐄𝐍𝐂𝐘 𝐁𝐀𝐂𝐊𝐔𝐏 𝐎𝐍𝐋𝐘 – The solar panel is designed for emergency top-ups outdoors when a wall outlet is unavailable. Due to energy conversion limits, solar charging is very slow. ALWAYS fully charge the power bank via wall adapter/cable before your trips. Do not rely on sunlight as the primary power source.
- 𝐅𝐈𝐑𝐒𝐓 𝐓𝐈𝐌𝐄 𝐔𝐒𝐄 & 𝐀𝐂𝐓𝐈𝐕𝐀𝐓𝐈𝐎𝐍 𝐆𝐔𝐈𝐃𝐄 – This heavy-duty battery pack may arrive in a "sleep mode." Upon arrival, please charge it using a 5V/2A wall charger for at least 6-8 hours to fully activate the cells. If the LED indicators do not light up immediately, keep it plugged in—it will refresh shortly.
- 𝟑 𝐁𝐔𝐈𝐋𝐓-𝐈𝐍 𝐂𝐀𝐁𝐋𝐄𝐒 & 𝐖𝐈𝐑𝐄𝐋𝐄𝐒𝐒 𝐂𝐇𝐀𝐑𝐆𝐈𝐍𝐆 – Equipped with built-in USB-C, Lightning, and Micro-USB cables, plus a standard USB output port and a wireless charging pad. Charge up to 5-6 devices simultaneously. Perfect for family camping, beach trips, or off-grid adventures.
- 𝐅𝐀𝐒𝐓 𝟏𝟓𝐖 𝐂𝐇𝐀𝐑𝐆𝐈𝐍𝐆 & 𝐑𝐄𝐀𝐒𝐎𝐍𝐀𝐁𝐋𝐄 𝐂𝐀𝐏𝐀𝐂𝐈𝐓𝐘 – Delivers a steady 15W output to charge your phone safely without overheating. The 20,000mAh capacity provides ample backup power (approx. 2-3 full charges for most smartphones), keeping your essential devices alive for a weekend getaway.
- 𝟑-𝐌𝐎𝐃𝐄 𝐄𝐌𝐄𝐑𝐆𝐄𝐍𝐂𝐘 𝐅𝐋𝐀𝐒𝐇𝐋𝐈𝐆𝐇𝐓 (𝐇𝐎𝐖 𝐓𝐎 𝐓𝐔𝐑𝐍 𝐎𝐍) – Built-in multi-protection chip prevents short circuits. To turn ON/OFF the LED flashlight, PRESS and HOLD the power button for 3-5 seconds. Cycle through Strong, Strobe, and SOS modes with a single click. (Note: The unit is weather-resistant against light splashes, but NOT fully waterproof—do not submerge or leave in heavy rain).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FWQD5YQF |
| Amperage | 3 A |
| Antenna Location | Indoor/Outdoor |
| Battery Capacity | 20000 milliamp_hours |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 10 hours |
| Battery Weight | 3.2 ounces |
| Best Sellers Rank | #10,092 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #491 in Cell Phone Portable Power Banks |
| Brand | Luvknit |
| Color | Black |
| Compatible Cellular Phone Models | Samsung Galaxy Note5 |
| Compatible Devices | Camera, Smartwatch, Speaker, Tablet, iPhone17/16/15, iPad, Samsung Galaxy phones, Google Pixel, tablets, Bluetooth headphones, smartwatches |
| Compatible Phone Models | smartphone |
| Connector Type | USB Type C, USB-A, Lightning, Micro USB, Wireless Charging |
| Current | 3 |
| Customer Reviews | 4.0 out of 5 stars 725 Reviews |
| Included Components | 1 x Solar Power Bank, 1 × Carabiner, User Guide |
| Item Dimensions | 5.63 x 2.91 x 0.85 inches |
| Item Dimensions L x W x Thickness | 5.63"L x 2.91"W x 0.85"Th |
| Manufacturer | Shenzhen Zhongxing Wei Technology Co., Ltd. |
| Maximum Output Power | 15W |
| Mfr Part Number | PS31H |
| Model Name | PS31H |
| Model Number | PS31H |
| Number of Batteries | 1 AAA batteries required. (included) |
| Number of Items | 1 |
| Number of Ports | 6 |
| Other Special Features of the Product | Fast Charging |
| Output Current | 3 A |
| Output Wattage | 15 watts |
| Power Source | Corded Electric |
| Rapid Charging Performance | 50% in 1 Hour |
| Reusability | Rechargeable |
| Special Feature | Fast Charging |
| Voltage | 3.7 volts |
| Warranty Description | We Support Refund Without Return Within 30 Days And Replacement Within 60 Days. If you have any questions, please feel free to contact us via order ID. We will reply within 24 hours. |
| Warranty Type | We Support Refund Without Return Within 30 Days And Replacement Within 60 Days. If you have any questions, please feel free to contact us via order ID. We will reply within 24 hours. |

## Product Details

- **Battery Capacity:** 20000 milliamp_hours
- **Brand:** Luvknit
- **Color:** Gray Orange
- **Connector Type:** USB Type A, USB Type C
- **Special Feature:** Fast Charging

## Images

![Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping - Image 1](https://m.media-amazon.com/images/I/71kYTt3UqJL.jpg)
![Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping - Image 2](https://m.media-amazon.com/images/I/71Iqc4hspML.jpg)
![Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping - Image 3](https://m.media-amazon.com/images/I/71n5Ckvsn5L.jpg)
![Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping - Image 4](https://m.media-amazon.com/images/I/81eowShj+SL.jpg)
![Solar Power Bank 20000mAh, Portable Charger with Built-in 3 Cables (USB-C/Lightning/Micro-USB), 15W Fast Charge, Battery Pack for iPhone Samsung Android, Solar for Emergency Only, Perfect for Camping - Image 5](https://m.media-amazon.com/images/I/71v3hKsW1HL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does solar charging actually work or is it a gimmick?**
A: Works in direct sun. Fully charges the 20000mAh battery in about 30+ hours.

**Q: Can I charge my phone while the power bank is solar-charging?**
A: Yes. Plug in your phone while the sun recharges the bank simultaneously.

**Q: What if it’s cloudy or I’m in the shade?**
A: Solar works best in direct sun. Reserve battery holds power for cloudy days.

**Q: How many times can this charge my phone?**
A: About 2–3 full charges for most smartphones on a full battery.

**Q: Is this safe to leave in the sun or car all day?**
A: Yes. Built-in overcharge and overheat protection keeps it safe.

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**Shop now:** [https://www.desertcart.jp/products/720388214-solar-power-bank-20000mah-portable-charger-with-built-in-3](https://www.desertcart.jp/products/720388214-solar-power-bank-20000mah-portable-charger-with-built-in-3)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-02*