batteries

Posts Tagged ‘batteries’

03
Feb

Wirelessly Charging Electrical Vehicles

Posted by sandman49

A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The long-term goal of the research is to develop an all-electric highway that wirelessly charges cars and trucks as they cruise down the road. Related article: news.stanford.edu Stanford University: www.stanford.edu Stanford News: news.stanford.edu Stanford University Channel on YouTube: www.youtube.com







03
Aug

BMW i3 construction

Posted by sandman49

This video from BMW shows the construction of its radical i3 pure electric concept, due to go on sale in 2013. Visit TheChargingPoint.com for more info.







02
Aug

BMW i8 interior and exterior

Posted by sandman49

This video from BMW shows the exterior and interior views of the i8 plug-in hybrid electric sportscar concept, due for sale in 2014. Visit TheChargingPoint.com for more info.







30
Jul

BMW i3 interior and exterior

Posted by sandman49

This video from BMW shows the exterior and interior views of the i3 pure electric concept, due for sale in 2013. Visit TheChargingPoint.com for more info.







20
Jul

When hooking up two 12volt batteries to create one 24volt battery, does that also double the amps?

Posted by sandman49

Is the amp output doubled when hooking to batteries up in series? I know the voltage is doubled, so I think the amps is also doubled.


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    20
    Jul

    What causes laptop batteries to suddenly give trouble?

    Posted by sandman49

    I bought a HP laptop less than a year ago, now it says that i should consider replacing the battery.Smething is wrong with the batteries storage space also. When the laptop’s battery has run out n it shuts down usually it saves whatever u were doing and u can charge and restart the machine and everything is saved…..What can be the main reasons for this problem occurring?


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      26
      May

      Why do rechargeable batteries not work in my Cannon Powershot camera?

      Posted by sandman49

      Tells me right from the start to put new batteries in it. They work in other devices!


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        20
        May

        Connectland Mouse says low battery right after i replace the batteries?

        Posted by sandman49

        My brand new bluetooth mouse says that it has low battery. I tried replacing the batteries with brand new ones, but it still says it has low battery! What should I do? I had the same problem with my old bluetooth mouse! I have vista running on a HP Pavilion dv 2000. Any suggestions?


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          17
          May

          What rechargeable batteries have the lowest self-discharge rate?

          Posted by sandman49

          Aren’t there 2 types of self-discharge? One where the battery flattens by itself and needs to be recharged again and one where the battery loses its maximum capacity and will no longer hold the same amount of charge it used to?

          So what are the batteries with the most lowest SD rate? Please tell me the batteries with the lowest SD rate from the two types of SD above (permanent and temporary).

          Thanks.


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            25
            Apr

            Why are batteries inserted with half facing one direction and the other half facing opposite?

            Posted by sandman49

            In nearly every battery operated device the instructions call for some batteries to be inserted positive side down, and the other half positive side up. Suddenly, after a lifetime of using batteries, I woke up wondering WHY?


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