1.5 Volts Lithium batteries

Discussion in 'Off-Topic' started by bertus, Sep 12, 2014.

  1. bertus

    Thread Starter Administrator

    Apr 5, 2008
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    Hello,

    I have seen lithium batteries in the size of AA and AAA that give out 1.5 Volts.
    The seem to have a regulation circuit in them with current limiting.
    Here I found the manufacturers website:
    http://www.iiquu.com/en/lithium

    Bertus
     
  2. Wendy

    Moderator

    Mar 24, 2008
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    Not rechargeable though.
     
  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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  4. Wendy

    Moderator

    Mar 24, 2008
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    The problem is hard standards, they will not stop being standards just because tech moves on.
     
  5. #12

    Expert

    Nov 30, 2010
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    I can certainly imagine several good uses for a 5 volt battery the size of a AA.
    Lots of back-up batteries and portable instruments would like that kind of power source.
     
  6. Wendy

    Moderator

    Mar 24, 2008
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    4X AAA 1.25V batteries would do it. :)
     
  7. Brownout

    Well-Known Member

    Jan 10, 2012
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    So would a 1.5v battery and joule thief. That's what was in the first LED headlamp I had.
     
  8. #12

    Expert

    Nov 30, 2010
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    Yeah, I know. I already find (3) AA batteries in a lot of digital thermostats, but a 5 volt battery the size of a single AA battery would reduce the size and probably lower the cost. Then there are digital multi-meters that would like 5 volts for their logic circuits instead of stepping down a 9V battery.
     
  9. Wendy

    Moderator

    Mar 24, 2008
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    And thus, a new standard is born. I've been seeing several new types of rechargeables in the last year.
     
  10. Georacer

    Moderator

    Nov 25, 2009
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    Given the amount of 5V circuits in the tinkerer community, I also wonder why there isn't a 5V battery as well. There would be as much use for it, as there is for the 7805 regulator now.
     
  11. ISB123

    Well-Known Member

    May 21, 2014
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    They probably have reason for that.
    If they produce 5V battery 7805 sales would drop but if they keep 9V battery then they got a sweet spot since you need 9V and 7805.
     
  12. tcmtech

    Distinguished Member

    Nov 4, 2013
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    The potentially fatal flaw I see in making a direct 5 volt battery is voltage sag issues. Most 5 volt powered logic circuits tend to be rather fussy about how far above or below the 5 volt ideal they use you can go.

    As far as low power compact sized goes two 3 volt lithium button or coin cells plus a set of surface mount diodes tends to get you pretty close to that 5 volt working range with minimal power loss all in as tiny of package as you want.
     
    Georacer likes this.
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