Energizer Hard Case P28K packs in a 28,000mAh battery

Photo: Avenir Telecom

Avenir Telecom is back with a phone unlike any other: the aptly named Energizer Hard Case P28K. It boasts a massive 28,000mAh battery, promising up to a week of regular use on a single charge. This is a phone built for off-the-grid adventures, with a rugged IP69 rating to withstand the elements. Talk time is a staggering 122 hours (over five days), and standby stretches to a mind-blowing 94 days.

However, with great power comes great size. The Hard Case P28K is a thick boi at 27.8mm and a hefty 570g, making it three times thicker and heavier than an iPhone 15. This isn't the phone for those seeking a sleek device.

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