Does these Solar Battery Chargers really work?

Discussion in 'Trucks and Trailers' started by TimTim2008, May 5, 2009.

  1. TimTim2008

    TimTim2008 LawnSite Bronze Member
    Posts: 1,772

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    Does these Solar Battery Chargers really work?

    I was thinking about putting one on each of our riding mowers when not in use (they come with clamps too).. and parked trucks. etc..






    Specs

    Model Number: 04051

    Wattage: 1 watt

    Peak Output: 80 mAmps@15 volts

    Approx. Watt-Hrs / Day *: 4 - 5

    Approx. Amp Hrs / Day *: 0.32 - 0.4

    Dimensions: 14" x 3.8" x 1" / 356 mm x 95 mm x 25 mm

    Weight: 1.0 lbs / 0.5 kg

    Temperature Range: -40?F to 176?F / -40?C to 80?C
     
  2. TimTim2008

    TimTim2008 LawnSite Bronze Member
    Posts: 1,772

    yes, no, maybe?
     
  3. browningv308

    browningv308 LawnSite Member
    Posts: 160

    I have used those for years [ mine have clamps that connect directly to the battery terminals ] on my boat, an old tractor and unused batteries that are sitting around and have been very happy never a dead or overcharged battery even leave them out in the rain heat and snow I compare to the battery tender that plugs into the wall
     
  4. GravelyNut

    GravelyNut LawnSite Bronze Member
    Posts: 1,594

    We've got a bigger one on a tractor like in my Rebuilt Gravely thread. Works well.
     
  5. topsites

    topsites LawnSite Fanatic
    Posts: 21,654

    Last edited: May 23, 2009
  6. GravelyNut

    GravelyNut LawnSite Bronze Member
    Posts: 1,594

  7. lyube

    lyube LawnSite Fanatic
    Posts: 6,598

    They aren't made to recharge batteries-they do that, but very slowly.

    The main thing is to keep the batteries above depleted. When they are depleted, deposits build up on the plates and problems occur.
     
  8. TimTim2008

    TimTim2008 LawnSite Bronze Member
    Posts: 1,772

    they work so far so good
     
  9. GravelyNut

    GravelyNut LawnSite Bronze Member
    Posts: 1,594

    The average battery needs about a half amp at 12 volts to be maintained. That figures out to be around 5 to 6 watts. If you start the tractor once a week and leave the charger on it the rest of the time, the 5 watts work fine.

    A Gravely 2-wheeler from the late 30s to 76 may have a starter but didn't have a charging system. With one of these panels, its always ready to go. With magneto systems, once running, the engine doesn't need power from a battery to keep going.
     
  10. TimTim2008

    TimTim2008 LawnSite Bronze Member
    Posts: 1,772

    do mowers re-charge the battery when they run?
     

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