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Tom's Hardware evaluated 13 portable chargers spanning 5,000 mAh single-port units at 22W up to 25,000 mAh multi-port models delivering 220W. Prices ranged from the Cuktech CP12 (10K/20W) at $24.99 to the Anker Prime (A110B) 20K/220W at $129.99, with some units charging fully in four to six hours and others faster. The units differed in included cables, displays versus simple LED indicators, and physical design.
A technical explainer breaks down how to calculate the actual energy stored in a power bank by converting its milliamp-hour (mAh) rating into watt-hours (Wh) using battery voltage, typically 3.7V for lithium-ion cells. It notes that a 10,000 mAh bank stores about 37Wh, while modern MacBook batteries range from roughly 37Wh to 100Wh, meaning smaller power banks may not fully recharge larger laptop batteries.
A new commentary challenges the widespread assumption that innovation is the domain of startups and disruption comes only from smaller, nimbler players. It argues that large organizations can actually use their scale as an asset to strengthen their capacity for innovation rather than being held back by size.
Apple's iPhone 18 Pro Max ships with a battery-firmware lock that caps capacity below the 20Wh threshold that triggers international shipping restrictions on single-cell batteries. Once a customer activates the phone for the first time, the lock lifts automatically, restoring the battery to its full rated capacity of roughly 21-22Wh depending on the model. A 'Prepare to Ship' setting can reimpose the cap, limiting charging to 80 percent over 14 days, for anyone sending the device in for repair or resale.
Apple has built a 'Prepare to Ship' firmware feature into the iPhone 18 Pro Max that temporarily caps its battery below the 20Wh transport limit enforced in the US, EU and other regions. Once the device is activated by a customer, the cap lifts and the phone's full 5,391mAh capacity becomes available. The same toggle can be re-enabled manually when shipping a device for repair, trade-in or resale.
Apple confirmed the iPhone 18 Pro Max packs a single-cell battery exceeding 20 watt-hours, triggering extra international shipping regulations for large batteries. To comply, Apple built firmware that caps the battery below 20 Wh during manufacturing and transit, only unlocking full capacity once a user activates the phone. A new 'Prepare to Ship' toggle in Settings lets owners discharge the battery back below that threshold before repairs, trade-ins, resale, or gifting.
Anthropic and OpenAI are pursuing smaller data center deals in the 20-30 megawatt range, according to sources familiar with the discussions, even as both companies have already signed massive multi-hundred-megawatt and gigawatt infrastructure agreements. Anthropic has explored such deals in the UK and Nordics, while OpenAI has looked at similar opportunities in the Nordics, with talks also reportedly underway for smaller U.S. deployments. OpenAI confirmed it is building a 'diversified compute portfolio' but declined to discuss specific commercial talks; Anthropic did not comment.
Valve has released its new Steam Frame virtual reality headset, a lightweight, technically advanced device that can stream games from a PC or run them independently. It comes in two versions: 256GB storage for £889 and 1TB storage for £1,089.
Startup Resilience Energy is installing solar panels and battery systems at no cost to homeowners, then aggregating that distributed capacity to sell electricity back to the grid during periods of peak demand. The approach sidesteps the years-long permitting and interconnection delays that typically slow construction of utility-scale solar farms.
A personal reflection describes how underused feet can lose their natural function as a broad stabilizing surface, gradually shrinking in effective support to a line and then even to a point-like contact with the ground. The author attributes their own instability to an underdeveloped foot and notes it has improved through deliberate practice, likely including barefoot movement and exercise.
Walmart sells used iPhones under distinct quality labels—Restored Premium, Restored, and Marketplace Pre-Owned—each with different testing standards, battery capacity guarantees, and cosmetic grading. The condition and grade (Like New, Good, or Fair) appear near the product image and Add to Cart button, and directly affect the device's return policy.
New tracking data shows gas-fired power capacity under development in the United States has surged past China's, reaching roughly three times the amount, driven largely by data center demand. The volume of U.S. gas power projects tied to data centers nearly doubled in just the first half of 2026.