

KMASHI’s cheap battery packs are some of the most popular items we’ve ever posted, and their well-reviewed 10,000mAh model is back down to just $ 9 today (with code MHLSNM2R), matching all-time low.


KMASHI’s cheap battery packs are some of the most popular items we’ve ever posted, and their well-reviewed 10,000mAh model is back down to just $ 9 today (with code MHLSNM2R), matching all-time low.
A new type of battery could provide better storage for renewable energy than Tesla’s Powerwall. Here’s how it works.


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Quick, what’s your No. 1 qualm about smartphones? Chances are, you said “battery life.” Most smartphones today, even high-end ones, barely last a day of heavy use.
Apple is looking to fix that problem with a new patent, filed in March and published Sept. 3, that describes a “fuel cell system for a portable computing device.”
The patent envisions a system consisting of a fuel cell, which converts fuel to electrical power, an interface to the portable computing device (e.g. smartphone) and a controller that monitors the state of the fuel cell and controls it Read more…