In a controlled environment ranging from 22 to 22.4°C and 60% humidity I poured some tap water in an aluminium cup. Its temperature stabilised at 24.7°C. I placed the cup in the pad at full power. Left it about 7 minutes and checked the temperature again at 27.1°C. The measurements were taken from a quality digital thermometer for patisserie purposes able to collect data from -40 to 220°C. The pad works, if I left it for 10 mins or more it would go even higher, maybe it's not that fast for some but it won't let your drink go cold. Bear in mind that you need a cup that can transfer heat better than thick glass. It doesn't need charger as it can work from PC's usb and has safety locks. Would recommend but don't expect miracles.

In a controlled environment ranging from 22 to 22.4°C and 60% humidity I poured some tap water in an aluminium cup. Its temperature stabilised at 24.7°C. I placed the cup in the pad at full power. Left it about 7 minutes and checked the temperature again at 27.1°C. The measurements were taken from a quality digital thermometer for patisserie purposes able to collect data from -40 to 220°C. The pad works, if I left it for 10 mins or more it would go even higher, maybe it's not that fast for some but it won't let your drink go cold. Bear in mind that you need a cup that can transfer heat better than thick glass. It doesn't need charger as it can work from PC's usb and has safety locks. Would recommend but don't expect miracles.

In a controlled environment ranging from 22 to 22.4°C and 60% humidity I poured some tap water in an aluminium cup. Its temperature stabilised at 24.7°C. I placed the cup in the pad at full power. Left it about 7 minutes and checked the temperature again at 27.1°C. The measurements were taken from a quality digital thermometer for patisserie purposes able to collect data from -40 to 220°C. The pad works, if I left it for 10 mins or more it would go even higher, maybe it's not that fast for some but it won't let your drink go cold. Bear in mind that you need a cup that can transfer heat better than thick glass. It doesn't need charger as it can work from PC's usb and has safety locks. Would recommend but don't expect miracles.

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