I tested 3 wireless chargers to see which keeps my phones cool - what I learned surprised me

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Magnetic wireless chargers use different methods to fight heat.

I tested three different stations to see which works best.

The results were surprising.

To those of us who have been longtime fans of wireless charging -- even going back to the days of the Palm Pre -- one thing has remained certain: When you pick up your phone, it's going to be warm.

As it turns out, transmitting electricity through the air is going to heat things up, and that can be not ideal for your battery. When I got on the phone with the folks at Mophie, they were excited to tell me about its new charging stand.

Also: I cracked open a '1,000W' portable charger after it failed me in minutes - and wished I hadn't

According to CMO Brian Oleska, the 4-in-1 charger features StealthCharge Technology, which is Qi2.2-certified for 25W of wireless charging. But it passively keeps your phone cooler by positioning most of the charging components away from the charging pad and in the base of the stand. The metal of the stand acts as a heat sink, keeping your phone cooler.

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