November 7, 2024

Wireless Charging Safety Comparison: 100KHz vs 6.78MHz

WiBotic put two wireless battery charging systems to the test, specifically focusing on their safety when exposed to foreign metal objects. We compare a standard 100KHz wireless charging solution against the WiBotic 6.78MHz system, examining their heating behaviors with small and medium-sized metal objects like screws and scissors. Both systems were run at a comparable power output of 230W and were charging the same lithium ion polymer batteries. We ran each system for around 2 minutes and the results were suprising!

The 100KHz system caused smaller objects to reach temperatures of 60-70°C, and larger objects, like scissors, reached over 100°C—temperatures that could damage equipment or pose safety risks. Meanwhile, the WiBotic 6.78MHz system kept foreign objects near room temperature (20-30°C), ensuring safer charging conditions for robots in dynamic environments.

Another notable advantage of the WiBotic 6.78MHz system is its ability to maintain higher power transfer across a larger air gap, adding extra flexibility for robotics applications. Discover why this makes the WiBotic solution a robust, safe, and efficient option for charging autonomous mobile robots (AMRs), automated guided vehicles (AGVs), and other industrial robotic fleets.

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Interested in learning more about how WiBotic can provide a safer, more reliable, and more flexible option for wireless battery charging, feel free to reach out below: