All the power in the world and not enough battery!

Discussion in 'Amateur Radio News' started by VK6FLAB, Mar 2, 2019.

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  1. WD4DUI

    WD4DUI Ham Member QRZ Page

    Batteries are like chemistry and electricity or something.

    Some Batteries are really heavy, like they are made from lead or something.

    Some Batteries have liquid in them that burns, like acid or something

    Batteries will not keep my flashlight lighted all night, it’s like they discharge and die or something.
     
  2. K3KIC

    K3KIC Ham Member QRZ Page

    The fuel cells have run their course. Seems to have run out of gas.
     
    KK4HPY likes this.
  3. WD4DUI

    WD4DUI Ham Member QRZ Page

    Are you sure?
    I thought they were still used on the ISS for the crew member recycled water supply and power generation?
    I know that H is not the safest fuel but the power density (density?) is extremely high but also not very efficient to make H.
    I know H batteries/cells have been around for over a century.
    H is also the most abundant element in the universe. H cells continue to get better, but still H ain’t so efficient to make, easy to make but not really efficient. But, maybe a good way to store excess solar, wind or other “alternative” power production.
    You may be correct though, could be better power production technology that’s better and more efficient.
    73
     
  4. K3KIC

    K3KIC Ham Member QRZ Page

    They have their place in more exotic applications but in everyday use most of the developers have given up. I'm close to someone who ran one of the big programs and when they decided to stop they couldn't even give the technology away.
     
    KK4HPY likes this.
  5. WD4DUI

    WD4DUI Ham Member QRZ Page

    WOW!
    Bought stocks in Ballard, Plug Power and another one or two some years ago. Guess they went the way of PageNet.
    Would like to have played around with the stuff.
    You don’t think they will ever be feasible? Really thought they would be a competitive energy source.
    73
     
  6. AA7EJ

    AA7EJ Ham Member QRZ Page

    Huh ?
    Was that OP an article about lead acid battery or NOT?
    I admit NOT reading it very carefully , but did it explain why LEAD ACID BATTERY has 13,8V at the terminals and when ?
    Charging / discharging etc. ?

    "The traditional voltage for our amateur equipment is 13.8 Volts. Why not 12 Volts you ask. The short answer is chemistry, but let's move on, there is lots to cover."

    To the original poster:
    Does anybody technically edits / checks your articles before posting?
    This is not the first one you have posted in your "voodoo style".

    IMHO you should have stopped and provided LONG and real answer to the "chemistry".

    But if the audience buys your voodoo article , there is not much sense to "post edit it " by me.
    Would get flamed if I did it.

    73 Shirley
     
    VK6APZ likes this.
  7. K3KIC

    K3KIC Ham Member QRZ Page

    Not in the near future. Like many technologies they may emerge in the future in a different form than envisioned to day. Through the 60s everyone thought there would be a computer in every home. Except they all envisioned mainframes with tape storage and large front panels with blinking lights. 20 years later we did start getting computers all over. But implemented a lot differently.

    Lithium battery development reduced the need for fuel cells in many applications. Today it's more practical to generate electricity and store it in batteries than it is to convert it to a fuel and then reconvert after distributing the fuel.
     
  8. WB5WPA

    WB5WPA Ham Member QRZ Page

    H is a little difficult to 'mine' though; most of it seems to be on the surface but it is locked up in a liquid compound known as "water".
     
    KA1FWW likes this.
  9. WB5WPA

    WB5WPA Ham Member QRZ Page

    re: "The traditional voltage for our amateur equipment is 13.8 Volts. Why not 12 Volts you ask. The short answer is chemistry, but let's move on, there is lots to cover."

    The REAL reason 13.8V vs 12V is engine running/charging batteries versus NOT.
     
    K8XG and KA1FWW like this.
  10. KD6VXI

    KD6VXI Ham Member QRZ Page

    You do realize his solution is over 90 pct efficient.

    Burning off 1.2 volts over two diode dropping network is almost 92 to 93 pct efficient when compared to his 16 volts to start with.

    Math is easy, for some of us.

    100-(100/16)x1.2=92.5

    Not to mention, if he has a 25 amp bridge, there is no problem with current draw. Especially if not running fm at 100 watts.

    This also completely bypasses the probability of some cheap ChiCom dc/dc switcher causing interference on rx as well as causing switching sidebands if he doesn't also add appropriate filtering on the output of the switcher.


    --Shane
    KD6VXI
     
    WN1MB likes this.

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