Cooler Box Test 2026: Only a few stay truly ice-cold
IMTEST tested four cooler boxes with capacities from 35 to 45 liters. The winner is the EcoFlow Glacier Classic 35, which cools to 7°C in 17 minutes a...
IMTEST tested four cooler boxes with capacities from 35 to 45 liters. The winner is the EcoFlow Glacier Classic 35, which cools to 7°C in 17 minutes and maintains temperature for over 40 minutes. The best value for money is the Maentum IcecubeX 40L, though it cools slower (51 minutes) and lacks a built-in battery. All models operate below 40 dB, with energy consumption ranging from 17 to 29 Wh over 105 minutes.