Anker PowerCore+ Mini 3350mAh (Gen3)

The Anker PowerCore+ Mini 3350mAh (Gen3) is the smallest and lightest of the three Anker power banks here, weighing 85 grams, with an elongated aluminum, lipstick-shaped body that fits into a small pocket or hip-belt pouch. Its 3,350 mAh capacity and 5 W maximum output are modest compared with typical power banks, but that fits its role: it is not meant as the primary energy source for a multi-day trek, more a quick emergency backup for a phone. It charges via Micro-USB and has a single USB-A output with no fast-charging support, so topping up a phone takes longer than with more capable models. That low output and smaller capacity are the main trade-offs against the Astro E1 or PowerCore Fusion in the same lineup. For day hikes, or as a supplementary backup alongside a larger power bank on longer trips, its minimal weight and size make it a fairly clear-cut choice.