Nitecore's latest power bank, the NB10000 Gen 4, is a game-changer for anyone who values lightweight and compact gear. As a reviewer who's always on the lookout for the next big thing in outdoor technology, I was immediately drawn to this power bank's impressive specifications. Weighing just 146 grams and measuring 1.45 x 11.6 x 4.68cm, it's the lightest and most compact 10,000mAh power bank I've ever seen. What's more, it boasts a silicon-carbon anode, the same technology used in flagship smartphones, which contributes to its exceptional weight and size. Personally, I think this power bank is a must-have for anyone who wants to shave grams off their gear without compromising on performance. In my testing, the NB10000 Gen 4 fully recharged my iPhone 15 Pro twice and topped up my MacBook Pro, all while supporting pass-through charging. The class-leading energy density and impressive water resistance make it ideal for endurance athletes and backpackers. However, the price tag of $83.95 is a significant drawback. It's two to three times more expensive than the typical 10,000mAh power bank, but the weight and performance savings make it a premium choice for those who value every gram. The only real downside is the knock-to-wake feature, which is hit-or-miss, and the silly RGB lighting. Overall, the Nitecore NB10000 Gen 4 is a powerful and compact power bank that's perfect for anyone who wants to stay charged on the go. It's a bit pricey, but the performance and weight savings make it a worthwhile investment for outdoor enthusiasts.