10 Best Thin Portable Charger 2025 in the United States

The Charmast 10000mAh Portable Charger stands out with its built-in cables, making it extremely convenient for users who prefer not to carry multiple cables. With a total of 6 output ports (3 of which are built-in) and 3 input options, it can charge up to 6 devices concurrently, making it ideal for multi-device users.

The slim design, comparable to a lightweight smartphone, enhances portability, and the digital LED display allows for easy monitoring of the remaining battery charge. Compatibility is broad, covering a wide range of popular devices including iPhones, Samsung phones, Google Pixels, and various tablets. The inclusion of a pouch and comprehensive support adds value to the purchase.

With a capacity of 10000mAh, it may not be sufficient for heavy users who need to charge multiple high-consumption devices frequently. Additionally, the charging speed, while decent at 3A, might not be the fastest available in the market. The build quality appears respectable, but detailed safety features are not explicitly mentioned, which could be a concern for some users. This charger is best suited for travelers or anyone who needs a compact and versatile charging solution on the go.

The Anker 621 Magnetic Portable Charger (MagGo) is an impressive choice for a thin portable charger, especially tailored for iPhone users. With a capacity of 5000mAh, it provides a decent amount of power to extend your phone’s battery life, though it might be insufficient for multiple charges if you have a high usage rate. The inclusion of a USB-C cable is a positive, enhancing versatility and compatibility with various devices.

Its size and weight are major strengths; at just 5 ounces and with dimensions of 4.13 x 2.62 x 0.45 inches, it's very compact and easy to carry, fitting comfortably in pockets or small bags. The wireless charging feature, combined with strong magnets, ensures it stays attached to your iPhone securely, making it convenient for everyday use, like taking selfies or making calls single-handedly. However, some users might experience slight heating during use, which is normal but worth noting.

In terms of build quality and safety features, Anker is known for its reliable products, and the 24-month warranty adds extra peace of mind. The charger ranks high in customer reviews with a 4.2-star rating, reflecting general satisfaction. While it excels in portability and convenience, the charging speed might not be the fastest available due to its miniaturization, but it’s adequate for emergency charging needs. This product is ideal for iPhone users looking for a compact, reliable, and easy-to-use portable charger.

The Anker PowerCore 10K is a well-rounded thin and portable charger that offers a good balance between size, capacity, and durability. Its 10,000mAh battery is enough to provide about 2 full charges for an iPhone 12 or similar smartphones, which suits everyday use and travel without being bulky. Despite its capacity, it remains slim and lightweight (about 7.5 ounces), making it easy to carry in a pocket or bag. The charger features one USB-C input port and one USB-A output port, allowing you to charge one device at a time, which might be a limitation if you want to charge multiple devices simultaneously.

Its PowerIQ and VoltageBoost technologies help deliver a smart, efficient charge at up to 12W, which is decent for fast charging smaller devices but won't match the speed of some higher-wattage power banks on the market. Build quality is solid with scratch resistance and a tough exterior, giving confidence for regular travel use. Safety is well-covered through Anker’s MultiProtect system, offering protection from overcharging, short circuits, and overheating, which is reassuring for device safety and longevity.

One minor drawback is that the package includes only a Micro USB cable, so you’ll need to provide your own USB-C or Lightning cables depending on your devices. This power bank is suitable for users looking for a reliable, durable, and reasonably fast charger that’s easy to carry but may not satisfy those needing multiple ports or ultra-fast charging capabilities.