Uploaded February 2026 | Updated September 2026, 11 hours ago

---

Use code YOU10 at checkout for 10% off your order!

When buying a power bank, most people look at one number first — the mAh.
But capacity alone doesn’t tell you how it will actually perform.

In this video, we explain power bank specifications in plain English, including:
• What mAh really means
• Rated capacity vs advertised capacity
• Output wattage and charging speed
• Input wattage and recharge time
• Fast charging protocols (PD & QC)
• USB-C vs USB-A ports
• Power distribution and pass-through charging

Chapters:
Intro: 0:00
mAh: 0:55
Rated Capacity: 2:02
Output Wattage: 3:45
Input Wattage: 4:58
Summary: 5:52

Using real Nitecore models as examples, we break down how these specs work together — so you can choose the right power bank based on how you actually use it.

In Part 2, we’ll cover durability, operating temperature, safety systems, waterproof ratings, and certifications like CE, FCC, and CCC.

If you’re buying a power bank for travel, outdoor use, emergency preparedness, or everyday carry — this guide will help you avoid common mistakes.