Slashdot Mirror


Cell Phone Powered By Urine

sciencehabit writes "The newest source of battery power for your cell phone is both cheap and abundant. Scientists report that microbial fuel cells using human urine can directly power a cell phone battery. However, the devices are not quite portable enough to come in handy during a marathon pub crawl. One consists of six, 4-inch-long ceramic cylinders; the other is a network of 25 smaller fuel cells borrowed from the team's waste-fueled EcoBot. And urine-powered conversations would have to be short and sweet. After 24 hours of charging, a Samsung phone stayed alive for 25 minutes—enough to send several texts and make a 6-minute, 20-second call."

12 of 88 comments (clear)

  1. Yeah but... by Anonymous Coward · · Score: 5, Funny

    Yeah but it gets piss-poor reception, even when using frosty piss.

  2. Re:How does one pee for 24h straight ? by gandhi_2 · · Score: 2

    I heard the new iPhone 6 has the catheter tube in the bottom!

  3. So shit tech then by happyurine · · Score: 2

    And urine-powered conversations would have to be short and sweet. After 24 hours of charging, a Samsung phone stayed alive for 25 minutes

    Why do we even post this if it's that shitty charger?

    1. Re:So shit tech then by lightBearer · · Score: 4, Insightful

      ...because it's a start? Not all technology starts of at it's peak. This just happens to be a piss-poor beginning.

      --
      - No Bounce, No Play -
    2. Re:So shit tech then by dintech · · Score: 2

      "Hi, I'm not home at the moment so please wash your hands and call back later."

      "Oh... hi... it's me. I'll call back later when urine..."

  4. Urine Powered by keytoe · · Score: 5, Funny

    Perfect for Bear Grylls!

  5. Before you try this in the field ... by DrJimbo · · Score: 2
    --
    We don't see the world as it is, we see it as we are.
    -- Anais Nin
  6. grammar-school physics by bmo · · Score: 5, Insightful

    It's like people are rediscovering that you can make a battery out of any random electrolyte and two dissimilar metals to get grants.

    Who *didn't* make a battery out of a potato or lemon as a kid, or at least didn't see it demonstrated in 4'th grade?

    --
    BMO

  7. Dehydration by MrEricSir · · Score: 4, Funny

    If you're so dehyrdated that you have to call 911, urine trouble.

    --
    There's no -1 for "I don't get it."
  8. But this isn't a battery.... by Ellis+D.+Tripp · · Score: 4, Insightful

    This is a fuel cell, not a simple primary cell like you make from a lemon and a couple coins. The urine isn't acting as a simple electrolyte here.

    The urine acts as the fuel, and a fuel cell will keep producing power as long as it has fuel and oxygen. Unlike a primary electrochemical cell, the electrodes are not consumed as part of the reaction.

    --
    Remember "News for Nerds, Stuff that Matters"? Help make it a reality again! http://soylentnews.org
  9. Re:How does one pee for 24h straight ? by Tarlus · · Score: 2

    They call it the iPee.

    --
    /* No Comment */
  10. Re:How does one pee for 24h straight ? by Velox_SwiftFox · · Score: 2

    Urine touch with the iPee