The GT-D-31 is a compact portable power bank built with 20,000mAh lithium iron phosphate 21700 cells and durable PC plastic. Measuring 158×65×30mm and weighing 470g with a handy carry strap, it’s lightweight for daily commutes, business trips and outdoor camping. Boasting a peak total output of 165W, it features two Type-C ports plus one USB port: each Type-C supports up to 100W bidirectional input/output, while the USB port hits 22.5W fast charging to simultaneously power laptops, smartphones and other electronics. Equipped with a 1.41-inch digital screen, it displays real-time remaining battery and output wattage, alongside a 10W LED emergency light for nighttime use. Engineered with multi-layer safeguards against overcharging, short-circuits and overheating, this power bank carries 3C, CE, FCC certifications and complies with ISO international quality management standards. Its battery features ultra-low degradation: only 1% capacity loss in the first year and 0.4% annual decay afterward. Backed by a 5-year workmanship warranty and a 2-year power output warranty, it’s a reliable portable power solution for all daily and off-grid power needs.

Core Product Advantages

165W Max High Power Output – Dual Type-C up to 100W each + 22.5W USB, fast-charge laptops & mobiles simultaneously.
Premium LiFePO4 Cells – Ultra-low decay, only 1% first-year loss & 0.4% yearly attenuation afterward, 88% capacity kept after 8 years.
Compact Portable Build – 158×65×30mm & 470g lightweight body with handy carry strap for easy outdoor transport.
Large 20000mAh Capacity – Stable long-lasting power supply for daily commuting, camping and road trips.
Real-time Digital Display – 1.41” screen shows exact output wattage and remaining battery percentage.
Built-in 10W LED Lamp – Handy emergency lighting for nighttime outdoor use.
Full Multi-layer Safety Protection – Prevents overcharging, overheating & short-circuit damage effectively.
Rugged PC Outer Shell – Wear-resistant durable casing to cope with rough outdoor usage.
5+2 Years Warranty – 5-year workmanship plus 2-year power output guaranteed service.
Global Authoritative Certifications – ISO, CE, FCC & 3C certified for verified safety and stable quality.

Package Includes

1 × GT-D-31 Portable Power Bank
1 × User Manual

Product & Packaging Specs

165W Max High Output Portable Power Bank
Premium 20000mAh LiFePO4 Battery with Ultra-Low Capacity Degradation
Compact 6.22×2.56×1.18in, 470g Lightweight Portable Body with Carry Strap
Dual Type‑C + USB‑A Multi‑Port Fast Charging Design
1.41" Digital Screen for Real‑Time Power & Battery Display
Built‑in 10W LED Emergency Lighting
Full Protection: Overheat, Overcharge & Short Circuit Safeguards
Sturdy Wear‑Resistant PC Plastic Outer Shell
Wide Temperature Adaptive Working Performance
5+2 Year Official Quality Warranty
ISO / CE / FCC / 3C Global Safety Certifications

Product Specifications

Item	Parameter	Item	Parameter
Max Total Output	165W	Battery Capacity	20000mAh LiFePO4
Output Ports	Dual Type-C + USB-A	Type-C In/Out	Max 100W per port
USB Output	Max 22.5W	Built-in LED Light	10W
Product Size	6.22×2.56×1.18 in	Product Weight	470g (1.036 lbs)
Protection	Overheat / Overcharge / Short	Display Screen	1.41” Digital Power Display

Frequently Asked Questions (FAQs)

What’s the core advantage of this GT-D-31 power bank vs regular lithium power banks?

It adopts LiFePO4 battery with ultra-low attenuation, only 1% capacity loss in the first year and 0.4% annual decay afterward; it keeps 88% capacity after 8 years, far more durable than ternary lithium items, effectively lowering your after-sales return rate.

What’s the max output power and port configuration? Can it fast charge laptops?

Peak total output hits 165W, 2×Type-C(each max 100W input&output)+1×USB-A(22.5W). Dual Type-C ports support PD fast charging for most 100W laptops, ideal for outdoor & business user groups.

What certifications does this item carry for global wholesale sales?

Certified with 3C, CE, FCC, plus ISO9001/14001/45001 & IEC standard certifications, meets mainstream market access requirements for US, EU and most global regions.

How about the after-sales warranty policy for bulk orders?

We provide 5-year workmanship warranty + 2-year power output warranty for bulk clients, long warranty helps you build market competitiveness and reduce customer complaints.

Is customized OEM/ODM available for bulk wholesale? Like private logo & package?

Yes, we support customized silk-screen logo, outer packaging and parameter fine-tuning for large-volume orders; contact our sales for detailed MOQ & customization cost.

Does the built-in digital screen display real-time data? What’s the extra LED function for?

1.41-inch digital screen shows real-time output wattage and remaining battery; built-in 10W LED lamp works as emergency lighting for camping, hiking scenarios to expand product selling points.

What safety protections are equipped inside the power bank to avoid quality issues?

Built-in multi-protection circuit against overcharging, overheating and short-circuit; rugged wear-resistant PC shell improves shock resistance, greatly cutting product damage rate during logistics and daily use.

What is the product dimension & weight for logistics cost estimation?

Size 158×65×30mm (6.22×2.56×1.18in), net weight 470g; compact lightweight design helps save ocean/air freight cost for your bulk shipments.

GTPOW 165W LiFePO4 Portable Power Bank