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First, is portable storage, specifically batteries, of the sort that we use for our laptops and mobile phones.
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At the electronics store, dry batteries and portable stoves are sold out.
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He had generated an idea of using human-powered batteries for television or portable video game consoles.
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The device is portable and can be powered with batteries or plugged into an electrical outlet.
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Connectivity to the outside world: There is only WiFi and Bluetooth with no LTE, 3G, or 4G access to any network unless you link through your phone or portable hotspot, which means running down two batteries at the same time and jeopardizing your ability to make and receive phone calls.
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Large markets for portable devices have driven significant performance improvements in rechargeable batteries.
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They're portable, durable and don't require any batteries.
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The best these portable fuel cells can perform is about as well as the lithium batteries they're meant to supplant.
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Put some basic survival items in your go bag, such as an old pair of glasses, medications for at least three days, a portable self-charging radio, granola bars, a flashlight and extra batteries, etc.
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The batteries themselves make use of the same zinc air technology used in hearing aid batteries, and apparently have the highest energy density of any portable consumer power solution, which translates to about three times the runtime of a similarly sized alkaline or lithium ion battery.
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As portable devices become more sophisticated, with added functions and large colour screens, they are draining batteries faster.
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