In 2025, new national rules will begin. These rules are from the Civil Aviation Administration of China (CAAC) and the State Administration for Market Regulation. Power banks without 3C certification or with falsified specifications will be banned from both sales and air travel.

This update not only strengthens industry standards but also ensures passenger safety. In this article, we will explain the new rules, required certifications, battery types, and safety tips. This will help you pick a safe and reliable power bank in just 3 minutes. A practical self-check checklist is included at the end.

1. Regulatory Overview: What Changed in 2025?

The CAAC has updated aviation safety requirements for power banks based on international guidelines such as the Technical Instructions for the Safe Transport of Dangerous Goods by Air. Key requirements include:

Carrying Requirements

Power banks without a clear 3C label, in the recall list, or with fake certifications are prohibited on domestic flights.
Power banks must be carried in hand luggage. Checked baggage is strictly prohibited.

Rated Energy Limit

Devices ≤100Wh can be carried freely.
Devices between 100–160Wh require airline approval; maximum of 2 per passenger.
Devices >160Wh or without rated energy labels are banned.

In-Flight Use

Power banks cannot be used during flights.
Devices with physical power switches must be turned off throughout the flight.

These new rules not only enhance aviation safety but also push the power bank industry toward higher quality and standardization.

Tip:
Buy power banks manufactured in 2024 or later to ensure they meet the latest safety and certification standards.

2. Understanding the 3C Certification: Your Safety Baseline

What is 3C Certification?
3C (China Compulsory Certification) is a legally mandated quality and safety certification for products sold in China. Since August 2024, all power banks must be 3C-certified to be sold or shipped.

How to Verify the 3C Label:

Label Type: Authentic 3C labels are embossed or printed, not stickers. They do not peel off or fade easily.
Label Information: The casing should clearly indicate:
- Rated Capacity & Energy (Wh)
- Voltage
- Battery Type
- Energy Efficiency
- Manufacturer Details
  Vague or missing info may indicate fake capacity claims or substandard batteries.

Mandatory Safety Standards Behind 3C:

Certification	Standard	Description
Battery Safety	GB 31241-2022	Covers overcharge, short circuit, thermal resistance, etc.
Device Safety	GB 4943.1	Requires V-0 flame-retardant casing, protected ports, and structural insulation.

Both standards are required to pass the 3C audit.

3. Global Safety Certifications for Power Banks

In addition to 3C, global markets require compliance with:

Certification	Region	Focus	Remarks
CE	Europe	Electrical & health safety	Required for EU market access
FCC	USA	Electromagnetic compatibility	Avoids interference with aircraft/medical equipment
UL 2056	USA/Canada	Flammability, circuit safety	Standard for consumer and shared power banks
IEC 62133-2 / 62368-1	Global	Lithium battery safety / Device testing	Common standard in UN & Asia-Pacific markets

Tip:
Buy from authorized channels and retain proof of purchase. Certified products have undergone complete safety evaluations from battery to casing.

4. Battery Type Comparison: Choosing the Right Core

Battery cell quality plays a crucial role in power bank safety and performance. Here’s a comparison of the three main types:

Cell Type	Model Example	Energy Density	Cycle Life	Safety	Use Cases
18650 Li-ion	Cylindrical	200–250Wh/kg	500–800 cycles	Lower	Low-cost or outdated models
21700 Li-ion	Tesla-type	250–300Wh/kg	800–1000 cycles	Moderate	High-end or long-run devices
Soft-pack Li-Polymer	Ultra-slim	300–500Wh/kg	1000+ cycles	High	Slim, magnetic wireless models

Recommendation:
Choose soft-pack polymer cells for better energy efficiency, lightweight design, and improved safety. If budget allows, opt for automotive-grade polymer cells—tested under extreme conditions for shock, heat, and vibration.

5. Safe Usage Guidelines for Power Banks

To ensure safety and extend battery life:

Avoid Charging While in Use
Let devices charge undisturbed. High power draw while charging increases heat and shortens lifespan.
Don’t Overcharge
Unplug after a full charge to protect battery health.
Use Original Accessories
Use the original or compatible chargers for optimal safety and efficiency.
Avoid Drops or Crushing
Damage can lead to internal short circuits.
Mind the Environment
Use in cool, dry environments. Avoid bathrooms, cars, and direct sunlight—especially in summer.
Follow Airline Rules
Carry power banks in hand luggage, not checked baggage. Keep them turned off during flights.
Respect Public Transport Rules
Subways and trains may screen for uncertified power banks. Avoid using unverified or unsafe products.

Tip:
Safety first—use responsibly and avoid low-quality or unbranded power banks.

6. Power Bank Self-Check Guide

Monthly 4-Point Checklist:

Visual Inspection: Check for swelling, cracks, or warping. Replace immediately if found.
Heat Test: If surface exceeds 45°C when charging, stop use.
Port Test: Check if USB ports are loose or damaged. Avoid short circuits.
Efficiency Check: If charging speed drops noticeably, it may indicate battery aging.

Shared Power Bank Tips:

Inspect Before Use: Avoid cracked devices or exposed wiring.
Use Trusted Brands: Choose power banks from well-known providers.
Confirm Return in App: Ensure the app shows “Returned” to avoid extra charges.

Tip:
If you detect swelling or overheating, stop using the device and contact customer support. Never attempt to open or repair it yourself. Replace your power bank every 2–3 years for optimal safety.

Conclusion
The 2025 power bank regulations aim to create a safer, more transparent market for consumers. Whether you’re commuting, traveling, or using shared devices, prioritizing certified, well-made power banks ensures both safety and performance.