**Next-Generation Battery Innovations: An Exploration of Solid-State Powerbanks**
The anticipated evolution of battery technology has frequently been compared to the elusive dream of fusion energy—a revolutionary advancement that appears perpetually just beyond our grasp. Although the industry consistently hints at breakthroughs such as laptop batteries with month-long life spans and genuine wireless charging across entire spaces, these features have yet to come to fruition. Nonetheless, a more attainable yet noteworthy development has emerged: solid-state powerbanks, including a novel MagSafe variant from Zens.
**The Zens Semi-Solid-State Powerbank**
The Zens Semi-Solid-State Powerbank embodies a hybrid strategy in battery technology. My associate Fernando Silva has recently evaluated one of these solid-state MagSafe batteries, while I have been assessing another variant. This choice to adopt hybrid technology arises from the reality that while solid-state batteries offer the highest energy densities, they do not consistently deliver peak performance and longevity. By integrating various battery technologies, Zens seeks to create a product that effectively balances these characteristics.
**Specifications**
The Zens powerbank is available in two models: a 5000mAh version measuring just 8mm in thickness and a 10,000mAh variant with a thickness of 1.4cm, both sized at 10.2x7cm. It is Qi 2.2 compatible, enabling charging speeds of up to 25W with the iPhone 16 series and 15W with older models. Furthermore, it is compatible with all AirPods generations that support wireless charging.
**Design and Aesthetics**
This powerbank showcases a stylish dark gray design, appearing almost black. Its rounded edges and matte surface on the exterior, along with a rubberized interior, help safeguard the iPhone from scratches. The Zens logo is subtly positioned above five small charge-state LEDs, and a USB-C charging port is at the base.
**Practical Use**
Although I usually work remotely and keep my iPhone on a MagSafe charger, I encountered two situations where battery longevity is crucial: during lengthy cycling trips for navigation and on long travel days. In both cases, the Zens powerbank effectively doubled the battery life of my fully charged iPhone 16 Pro Max. While the weight of 122g is noticeable, it is comparable to the bulk of the Apple MagSafe wallet I typically carry.
The powerbank’s pass-through charging capability adds convenience, allowing me to charge both the battery and the phone at the same time by connecting a charger to the powerbank while it is attached to the phone.
**Pricing and Conclusion**
Although the Zens Semi-Solid-State Powerbank may not signify a dramatic advancement in battery technology, it is a significant upgrade over older, bulkier models. When used in conjunction with a GaN power adapter, it provides a compact and lightweight charging option. Priced at $59.99 for the 5000mAh model and $79.99 for the 10,000mAh version, it is slightly pricier than traditional alternatives, but the slim profile justifies the price increase. Both models are available for immediate shipping through the Zens website.
In conclusion, while the pursuit of revolutionary battery technology persists, the Zens Semi-Solid-State Powerbank is a commendable and effective option for those in search of enhanced portability and performance in their charging solutions.