The Zero power bank from Ctrl Energy is designed to last. Unlike typical sealed power banks, it features easily swappable 18650 lithium-ion cells and a modular build, letting users extend its life and customize their charging experience.
- Replaceable batteries extend device lifespan
- Magnetic add-ons for personalized charging setups
- Expandable capacity and solar panel compatibility
What happened
Ctrl Energy introduced the Zero, a 3D-printed power bank meant to challenge the disposable nature of conventional portable chargers. It uses six 18650 lithium-ion cells, each with a 3,500 mAh capacity, totaling approximately 21,000 mAh. Users can easily access and replace these batteries without tools thanks to a magnetic lid design.
Beyond simple charging, the Zero boasts a USB-C port capable of 100W output and charging, a USB-A port with 18W charging, and wireless charging up to 15W. Multiple units can be linked to form a large-capacity power station, and optional add-ons like flashlights and tripod mounts expand its functionality. The company is crowdfunding the product with an expected worldwide delivery in mid-2027.
Why it feels good
The Zero’s user-friendly, sustainable design resonates because it tackles common frustrations with tech waste. Rather than discarding an entire power bank when batteries degrade, users can swap out only the worn cells, reducing environmental impact and extending usability significantly. This approach also offers cost savings over time.
Its modularity fosters customization to suit individual needs—whether adding extra USB ports, lighting for videos, or integrating with a tripod system. Moreover, the device’s compatibility with widely available batteries and optional solar panels promotes independence and versatility, ideal for those on the go or off the grid.
What to enjoy or watch next
As Ctrl Energy continues developing the Zero and its smaller sibling Subzero, keep an eye on how the magnetic add-ons evolve and what new modules might emerge. The ability to link multiple units into a powerful charging station offers intriguing possibilities for adventurers and tech enthusiasts alike.
Potential backers can join the ongoing Kickstarter campaign to support this innovation and receive early units at a discounted price. Looking ahead to its June 2027 shipping timeline, it will be exciting to see real-world use cases flourish, especially in sustainable tech communities and outdoor lifestyles.