Nestout Outdoor Battery 5000N ZDNET's key takeaways The Elecom NestOut is the toughest power bank I've ever tested, available for $45.
It features the best mechanism I've come across to protect the USB ports.
Its extreme durability is overkill for day-to-day use. View now at Amazon
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The toughest situation most people's power banks will endure is a drop on the floor -- maybe a spill at the coffee shop. But some people demand a lot more from their power banks.
If you work outdoors, are a member of the emergency services, or just incredibly clumsy with your gear, you need a power bank that can survive the worst Mother Nature can throw at you.
Also: The best power banks you can buy in 2025
I just happened to find one such product, and it's at the top of my list for toughness: the Elecom Nestout Outdoor Battery 5000N.
These power banks come in a rage of capacities – 5,000mAh, 10,000mh, and 15,000mAh --- and they are IP67-rated (completely dustproof and tested to resist immersion in a meter of water for 30 minutes). They also pass the rigors of MIL-STD-810G, a demanding set of tests performed by the US Department of Defense covering various environmental stresses such as shock, vibration, extremes of temperature extremes, and humidity.
The lithium-ion cells holding the power are protected from knocks and water by a hard outer shell and inside that is a soft silicone cushion to absorb impacts and vibration.
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