Best 4-in-1 Magnetic Wireless Charging Station 2026 – 15W
$50.60
DIY 20000mAh Power Bank Case with LCD Display, Dual USB, & Flashlight
Regular price
$6.78 USD
Regular price
$0.00 USD
Sale price
$6.78 USD
Unit price
per
20000mAh Power Bank Case – Portable External Battery Charger
Build your own reliable backup power with this 20000mAh power bank case, designed for outdoor use, travel, and everyday emergencies. Featuring an LCD digital display, dual USB output, and LED flashlight, this portable charger case delivers convenience, visibility, and flexibility in one compact design.
Quick Picks: VIVO Magnetic Wireless Power Bank | Fast Travel Charger · ASOMETECH 50000mAh 100W Power Bank | Laptop Fast Charger
20000mAh power bank charging box with LCD display dual USB and Type-C ports
⚠️ Batteries not included – requires 6 × 18650 flat-head batteries (no protection plate).
🔋 Key Features
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Large 20000mAh Capacity – Ideal for extended trips and emergency power
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LCD Digital Display – Monitor battery level, voltage, and current in real time
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Dual USB Output – Charge two devices simultaneously
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Multiple Input Interfaces – USB, USB Type-C, and Micro USB supported
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LED Flashlight – Built-in light for outdoor or emergency situations
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Plug & Play Design – Easy installation and operation
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Lightweight Plastic Shell – Portable and travel-friendly construction
📱 Wide Compatibility
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Smartphones & mobile phones
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Portable electronics & USB-powered devices
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Compatible with DIY external battery setups
⚙️ Specifications
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Battery Type: Li-Polymer (case compatible with 18650 batteries)
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Capacity: 20000mAh
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Input: 5V / 2A
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Output: 5V / 2A
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Interfaces: 2 × USB, 1 × Type-C, 1 × Micro USB
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Battery Requirement: 6 × 18650 flat-head batteries (not included)
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Shell Material: Plastic
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Certification: CE
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Size: 14.5 × 7.6 × 2.2 cm
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Weight: Lightweight portable design
👍 Pros & Cons
Pros: Large capacity, dual USB output, LCD display, LED flashlight, portable design
Cons: Batteries not included; confirm battery type before installation
🌍 Why Choose This Power Bank Case?
Compared to standard power banks, this DIY power bank charging box offers flexibility, clear battery monitoring, and dual-device charging—perfect for outdoor adventures, travel, or backup power needs.
🛒 Add to cart now — limited availability!
A smart choice for users who want customizable, high-capacity portable power.
Related Picks
- VIVO Magnetic Wireless Power Bank | Fast Travel Charger
- ASOMETECH 50000mAh 100W Power Bank | Laptop Fast Charger
- 20000mAh Power Bank for Heated Vest | USB Battery Pack
The 20000mAh Power Bank Case is a 20000mAh DIY power bank case with dual USB output, LCD display, and built-in LED flashlight for reliable backup power on the go.
Expert-recommended phone case trusted by 50,000+ customers worldwide. Compatible with 500+ smartphone models including iPhone 17 Series & Samsung Galaxy S25. Q: What makes this phone case stand out? A: Build your own reliable backup power with the 20000mAh power bank case.
Frequently Asked Questions
Will this power bank case work with my iPhone or Samsung device?
Yes! This DIY power bank case is universally compatible with most smartphones, including iPhones and Samsung devices, and can be easily assembled to fit your needs.
Is this power bank case worth the price, and what's it made of?
Absolutely! This power bank case is made of high-quality, durable materials and offers great value for its price of $6.16, considering its 20000mAh capacity and additional features like LCD display and flashlight.
How fast does this power bank case ship, and is there free shipping available?
Great news — this power bank case ships within 24 hours, and we offer free standard shipping on all orders, so you can get started with building your own backup power solution quickly and at no extra cost.
What if I'm not satisfied with the power bank case, what's the return policy?
Great news — we offer free returns within 30 days, so if this power bank case doesn't meet your expectations, you can return it hassle-free and get a full refund, giving you peace of mind with your purchase.
Who is this DIY power bank case best for, and any tips to get the most out of it?
Great news — this DIY power bank case is perfect for outdoor enthusiasts, travelers, and anyone who needs a reliable backup power source, and to get the most out of it, be sure to fully charge it before first use and follow the simple assembly instructions for optimal performance.
