Most of the power banks featuring safer and longer-lasting semi-solid-state cells are designed with a lower output for charging smaller devices like phones and tablets. BMX’s new $109.99 SolidSafe power bank has a 20,000mAh capacity and outputs up to 100W so it can charge more capable laptops, or up to three devices simultaneously at lower rates. [Image: https://platform.theverge.com/wp-content/uploads/sites/2/2026/11/bmx1.jpg?quality=90&strip=all]