powering small device with solar

Discussion in 'General Electronics Chat' started by Gilderod, Sep 17, 2013.

  1. Gilderod

    Thread Starter New Member

    Sep 17, 2013
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    I read previously the discussion (old) on powering an outside weather station sensor with a solar device. That discussion included the use of diodes.

    Would the trickle back problem be remedied by using a small solar battery charging system? 1.5 volt trickle chargers are quite common.

    If the charger was directly wired to the sensor at its 1.5 volt battery terminals would this alleviate the need to reinvent the wiring (using the diode)?

    Yes, I am electronically challenged.
     
  2. Bernard

    AAC Fanatic!

    Aug 7, 2008
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    Define small device requirements, V & A.
    Battery specs.
    Solar panel specs.
     
  3. wayneh

    Expert

    Sep 9, 2010
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    Yeah, I'm afraid I don't understand your questions. You mentioned a solar charger system, trickle charger, a sensor, a solar device. I'm lost.

    Can you propose a schematic of what you want to try?

    Taking a wild stab at your question, I believe a purpose-built solar charge controller will not require you to use an external blocking diode. I would expect it to be handled inside the charge controller.
     
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  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
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    Dirt simple devices such as solar garden lights charge using just 3 components: the solar cell, the battery (seen both AA and AAA in there), and a series diode.
     
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  5. Gilderod

    Thread Starter New Member

    Sep 17, 2013
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    I will have to get back with specs. I have not purchased the weather unit yet and therefore do not have needed info.

    Thanks.
     
  6. Gilderod

    Thread Starter New Member

    Sep 17, 2013
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    Thank you. This is me an idea to power the small weather sensor device.
     
  7. Gilderod

    Thread Starter New Member

    Sep 17, 2013
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    Sorry, should say this gives me an idea...
     
  8. Bernard

    AAC Fanatic!

    Aug 7, 2008
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    Mostly Ni-Cd, & some 2/3 AA, because of easy charging, & discharge to 0 V without damage. Now Li Fe PO4 in a fat AA is appearing; suposedly safer than Li ion, but should not be fully discharged.
     
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