If you prefer a finished product, current top-rated models categorized by use-case include: : BMX SolidSafe Air 5K
A specialized 18650 cell for high-output needs, offering a 25A discharge rate, which is superior for powering energy-hungry devices in a smaller form factor. Recommended Ready-to-Use Power Banks
. A high-capacity 25,000mAh powerhouse capable of 100W output, enough to charge five devices simultaneously. : Anker Nano 10K Go to product viewer dialog for this item.
. Rugged and IP67 waterproof-rated, making it suitable for backpacking and extreme environments. Critical Buying Criteria