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repurposing solar path lights, MODS Plz mv to general discussion — Parallax Forums

repurposing solar path lights, MODS Plz mv to general discussion

rwgast_logicdesignrwgast_logicdesign Posts: 1,464
edited 2012-11-04 08:25 in Propeller 1
so i scraped an assortment of solar cells from the 2.5 to5v range out of those solar path lamps.

first of all i was wondering of cleaning them up with sand paper and rubbing compound was ok, maybe even beneficial.

since there all different, if i were to put them in series how would this effect the max amperage, is it the output of the lowest cell?

Comments

  • Dr_AculaDr_Acula Posts: 5,484
    edited 2012-11-04 02:05
    since there all different, if i were to put them in series how would this effect the max amperage, is it the output of the lowest cell?

    Yes that is correct, max amps is the amps of the lowest output cell.

    They get pretty cloudy after a year or two - I think the plastic is not UV rated. I used to polish scratched CDs with silver/brass cleaner so that might be worth a try.
  • rwgast_logicdesignrwgast_logicdesign Posts: 1,464
    edited 2012-11-04 08:25
    so if i were to wire cells in parrallel this means id have the combined current output of all the cells but only at the voltage of the lowest rated cell?

    im trying to figure out the best way to make a grid that can trickle charge 9.6 to 12v of niMH. basically the idea is to just extend the battery life a bit while the batteries are in use
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