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Description: Packaged solar cell with barrel plug termination. This is a custom cell produced for SFE - not a small toy surplus item! This unit is rated for 8V open voltage and 310mA short circuit. We actually took a random unit outside and measured 9.15V open voltage and 280mA short circuit. Under ideal sun conditions (high-noon, clear sky) 310mA is very possible but will vary from cell to cell. We can even get 110mA from inside our office windows!

Termination is a 5.5mm x 2.1mm barrel plug, center positive on a 2m cable. Monocrystalline high efficiency cells at 15-15.2%. Mates directly with many of our development boards. Unit has a clear epoxy resin coating with hard-board backing. Robust sealing for out door applications!

Dimensions: 7 x 4.5"

Comments 26 comments

  • I want to use this solar panel to charge batteries powering my arduino remote logging station, which battery charger and battery will this solar panel work well with ?

  • This weighs about 100 grams, not including the cord.
    There is no built in diode.
    I posted a voltage/current curve on the web page below but it’s under artificial light so I don’t know exactly what its peak output is in real sunlight. I would estimate somewhere around 1.5-2.0 watts.
    http://jormungand.net/dev/solar/

  • Does anyone know how much this solar panel weigh? Thanks.

  • I want to use this device for a college project, a robot follows lines, the design is based on a military tank and uses three photo-sensors on bottom. Do you think that this device produces enough energy to power the robot? the robot its smaller than 10cm by 10cm

  • I have purchased 4 of this for an outdoor project. Will order 12 more if the product meets requirements…

  • I recently bought this product, will it charge a 2200Mah 11.1V LiPo battery?

  • Are there any chances of getting a data sheet for this? I would like to know the output impedance, IV curve, etc.

  • Hey Mike, I am thinking of using this to power a Power Cell - LiPo Charger/Booster sku: PRT-10300 can I do so without blowing up said charger booster or will I need some sort of 5v regulator and what would that do the performance of the output of the cell.

    • According to the datasheet for the MCP73831 chip on the charger, the absolute maximum input is 7V. Which is a problem, because this panel can get up to 8V.

      You’ve got a couple options though. One is, as you say, running the panel through a 7805 before hitting the charger. You’ll lose some efficiency (and voltage margin in low-light conditions), but sunlight is free and this is an easy fix.

      Another option is a simple zener shunt on the output of the panel. This circuit increasingly shorts power to ground if the voltage ever gets above 7V. I made one for exactly this purpose (this panel and this charger) out of a 6.8V zener and a small resistor. It does work; you lose a bit of power in the resistor, but not much.

      We’ve working on some solar-power products, but I wouldn’t expect them to appear on the storefront before fall at the earliest. In the meantime, the above two techniques should help get your project off the ground. Good luck!

  • can i use this panel with arduino uno?

  • can i use this panel with arduino uno?

  • Is there a datasheet for this panel?

    • All of the relevant data should be in the product post - anything in particular you’re looking for?

  • From the picture, this cell looks blue. Is it really blue or is that just the lighting in the photograph?
    I am working on a robot project that involves a number of solar cells. I already have four of the “Huge” cells (PRT-09241). Those are black. I am now considering a couple of the “Large” cells (PRT-07840) for the same project, but it’s only going to work for me if the “Large” cells are black like the “Huge” cells.

  • can i sand down the sides to 4.25 fit in a pelican case Micro Case 1060

  • I’m looking for a solar cell/motor combo that can work and propel in sunlight, not one of these solar projects that quiver after charging a capacitor. Will this panel work and what motor works in combo w/it?

  • I would also like to know how to charge a battery. I guess I need some kind o regulator when the battery is full.
    Thanks in advance!

  • I would also like to know about charging a battery using this cell…
    For now I will be using the Koala (PRT-08722) and the ~1Ah LiPo (PRT-00339)
    Thanks!

  • Does this have a diode to protect from destroying the cells while charging a battery?

  • Do you have the Power/Voltage curve for this panel? Do you know what the peak Voltage*Current is (Peak Power I guess?)?


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