Author: ChargeGrade Team

If you have purchased a portable charger recently, or if you are planning to travel through Asia with your electronics, you may have noticed a small, oval symbol on your device: the CCC mark. But what is CCC in powerbank terminology, and why should it determine whether you buy a device or leave it on the shelf? For years, the market was flooded with cheap, unregulated battery packs that posed significant fire risks. In response, regulatory authorities have implemented some of the strictest safety standards in the world. As of 2025, understanding CCC in powerbank safety is no longer just…

Why Your “10,000mAh” Power Bank Only Charges Your Phone Twice Today, we aren’t reviewing a brand-new flagship device. Instead, we are taking a veteran Aukey PB-Y36S—a power bank that has seen 5 years of use—and putting it on our test bench. Why test an old device? To demonstrate exactly how marketing specs mislead consumers, and to show you exactly how a real power bank capacity (lithium-ion cells) degrade over time. If you buy a carton of milk, you get 1 liter. But if you buy a power bank, the number on the box is almost always a lie. The Science: Why…