Tag: Batteries

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Jumpr Portable Jump Starter

Jumpr Portable Jump Starter

Jumpr
JUMPR is an incredibly slim, portable battery from Juno Power that can jump-start a car.

The perfect product for a late night infomercial!

The Juno Power JUMPR jump starting a dead Honda Civic.

The JUMPR is a 12V output car jumper with a peak amp of 300A. It charges via micro USB or 12V DC. See more at http://www.junopower.com

Capacity: 6000mAh
Size: 139 x 75 x 15mm
Weight: 7 Ounces
Output 1: 12V (150-350A).
Output 2: USB 5V 2.1A
Minimum Cycles: 500+

JUMPR charges via Micro USB cable or 12V Cigarette port. Cables are included.
JUMPR comes with proprietary jumper cables which are also included.

Proprietary jumper cables protects against backwards recharging and short circuit protection. Charging to the JUMPR is automatically cut off once the vehicle has been started.

via Laughing Squid

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Which Battery Lasts The Longest?

Which battery lasts the longest? According to this video regular Duracell batteries are your best choice.

We put the major battery brands to the test to find out which battery will give you the most bang for your buck!

Our testing process was fairly simple but effective. We used the exact same brand of flashlight (Maglite Xenon) all straight from the box. Each pair of batteries tested came from different stores around the Portland, OR area. Set 1 came from Fred Meyer, set 2 from Target and set 3 from Safeway. We did this to make sure we used different shipments and manufacturing dates from the battery companies.

While the procedure was not necessarily scientific, it gives you an indication of what you might expect when purchasing not only batteries, but any product on the market today. It’s always good to do your own research and make purchases based on what you find to work over a long period of time.

The oddest result was with the Energizer 9x Ultimate. It did not perform as expected. After some research we found that this particular battery is mainly intended to be used in high-draw electronics such as digital cameras. However, the marketing on the box says it is GREAT for flashlights. Go figure…

 

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Electric Vocabulary

Sit back and learn something.

ARVE Error: need id and provider

We all know the words around electricity, “charge,” “positive,” “battery” and more. But where do they come from and what do they really mean? Let the history of these words illuminate the physics of electric phenomena.

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