Belkin brings semi-solid-state batteries to a $70 power bank

Belkin’s UltraCharge Pro line uses its BoostSolid semi-solid-state cells, which add a gel layer to liquid electrolyte to reduce thermal-runaway risk, meet UL2056:2025 safety standards, and comply with TSA carry-on rules. The 5,000 mAh UltraCharge Pro Slim Magnetic costs $69.99, offers 15 W magnetic Qi2 wireless charging and 22.5 W USB-C output, while the 10,000 mAh model at $89.99 provides up to 60 W USB-C Power Delivery and a display showing capacity, wattage, and temperature. Belkin also launches its own dual-certified SureFind trackers and two conventional lithium-ion power banks (11 000 mAh for $59.99 and 22 000 mAh for $99.99).