The Energizer-branded EnergyBook Pro Ultra is a massive laptop with a massive battery. It has an 18 inch screen and a 192 Wh battery said to be good for up to 28 hours of "intensive office" use or 11 hours of "gaming or graphic design." #Laptop #Battery #Avenir #Energizer #EnergyBookProUltra https://www.24presse.com/press-release/ntic/laptop__energizer_pro_ultra__record_battery_life__7_days_without_recharging_9927322/