SUNPOWER MAXEON 60 FLEXIBLE SOLAR CELLS

These are the BEST cells for DIY panels.

Sunpower flexible  cells are the EASIEST cells to work with.

Sunpower solar cells have the highest efficiency ratings  because all connections are on the back of the cell. More power out of a similar footprint.

I've sold thousands of solar cells to the DIY market in the last 10 years, when Sunpower came out with these flexible  cells it was a game changer. No matter how careful you are handling normal mono or multicrystalline cells you will break some. Sunpower flexible cells will take So much more  abuse before cracking, when you weigh the cost of normal cells and how many you will break VS. flexible cells and the added cost per cell  you will still make out better buying flexible cells from the start.

I strongly recommend using the Sunpower "Dog bone" tabbing pieces. These are manufactured specifically for Sunpower for use on these cells.  If you chose to not use the bones bridging cells can be done with tabbing wire( wider is better)  or buss wire. A rosin flux pen is also highly recommended for easier soldering.

 Grade -B,  I see small scuff marks on some of the cells this will not affect performance. the cells also have a cloud like pattern, some have  fine scratches and a few  have fingerprints.   I had a real hard time getting any good photo of the scuff marks.

3.34 watts per cell

21.8 % eff.

.574 volts per cell

5.83 amps per cell

5" x 5" ( 125 x 125 mm) 

36 cells wired in series in your panel will be a 20.6 volt panel at 5.83 amps = 120 watt panel.

Cells rated  using the STC system the standard  system used in all solar cell and solar panel manufacturing. ( Standard Test Conditions)  google it.  Google   Solar STC 

SHIPPING: 

One flat shipping cost no matter how many cells  or cells and bones you buy, the more you buy at one time the more effective this flat rate is for you. The cells will be packed in bubble wrap inside a box called an "indestructo box" these are expensive strong boxes. 

Photos:

main photo: 4 fronts, 2 backs,1 tabbing bone

2nd photo: Close up  showing (-) and (+) sides of the cells + one tabbing bone between them.

3rd photo: I tried to get the skuff to show it is so lite it would not pick it up.

4th photo: Showing slight discoloration on the cell.

5th photo: Tried to get the minor scuff mark it but did not show.

6th photo: Part of the front on one cell  part of the back another showing 2 of the 3 contact locations.

7th photo: The backs of 2 cells showing where the tabbing bone will be  soldered to each cell.

8th photo:  Just the front of a single cell.

9th photo: Just one single tabbing bone.

10th photo: Just 5 cell fronts. 

NOTE: these cells will make easily on the fronts , do not lay anything on the cells , always use latex  or

             latex free gloves when handling.

ALSO I include a 4 page print out  with many hints and instructions. also a schematic  I made for  a 36 cell panel  made out of 3" x 6" cells this schematic is not made specifically for these  cells but it is a great visual aid  and will really help  understand  what your end result will be. the schematic  clearly shows the buss wire connections  connecting cell string to cell string.