Belkin’s new power banks use semi-solid-state batteries and claim 3x longer life
Belkin has unveiled two UltraCharge Pro power banks with semi-solid-state BoostSolid Cell batteries, 5,000mAh and 10,000mAh capacities, up to 60W charging, and a claimed lifespan up to three times longer.
Belkin unveiled two new UltraCharge Pro power banks at IFA 2026 that utilize a semi-solid-state battery called BoostSolid Cell. The compact 5,000mAh magnetic power bank is the slimmest at just 8.8mm thick, while the larger 10,000mAh model features a display. Belkin highlights the longer lifespan, slimmer profiles, and enhanced safety of these power banks compared to traditional liquid-cell alternatives.
The BoostSolid Cell technology employs a gel-like layer alongside the liquid electrolyte, allowing the cells to occupy less space and minimizing swelling over time. The power banks incorporate temperature sensors that monitor the battery every 250 milliseconds, halting power delivery if limits are surpassed. Semi-solid-state batteries are not novel in the power bank market, as Kuxiu and BMX have already released similar models.
Belkin positions these power banks to last up to three times longer than conventional options and to mitigate the risk of thermal runaway and fire. The UltraCharge Pro Slim Magnetic Power Bank 5K supports 15W Qi2 magnetic wireless charging and up to 22.5W via USB-C, while the 10,000mAh model offers up to 60W USB-C output. Both models feature USB-C and USB-A ports and a battery level indicator.
The 5,000mAh variant is priced at $69.99, and the 10,000mAh model at $89.99, both set to launch in black and sand from September 2026.
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