SUNYIMA 10Pcs (6V 50mA 3.15'x1.75') Mini Zonnepanelen voor Zonne-energie Mini Zonnecellen DIY Elektrische Speelgoed Materialen Fotovoltaïsche Cellen Solar DIY Systeem Kits Zonder Koperdraad

Ce lot est composé de 10 mini panneaux solaire de 8cm sur 4.5cm. Ils sont livrés bien emballés dans une boite avec un plastique de protection sur la face solaire.Les points de soudures sont bien accessibles pour y fixer les câbles. Ils sont donnés pour 6v et 50mA, et j'ai mesuré 6.2V pour 187mA, surprenant cette intensité 3 fois supérieur. En branchant 2 panneaux la tension monte à 464mA. Parfait pour les montages DIY pour alimenter de petit appareil ou recharger des batteries.

Buenos y funciinales

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Die Module kommen in einer kleinen Pappschachtel. Zum Schutz vor Transportschäden ist auf der Kollektoren-Seite eine Folie aufgebracht.Die Lötpunkte auf der Rückseite sind sehr großzügig dimensioniert und auch die Beschriftung ist eindeutig.In einem hellen Zimmer konnte ich ca 2.6 bis 3.5V messen, am Fenster 5V und in der Sonne bis zu 6.2V - jeweils ohne Verbraucher.

I purchased battery powered shades 5 years ago. These shades take eight AA batteries per shade at 7 shades. At first I used mainly alkaline batteries. The batteries would last about 6 months and all seemed to go at once. All in all, 56 batteries every 6 months or so. That got a little crazy even though the batteries were not horribly expensive. So I switched over to lithium ion AA batteries. The problem with lithium ion is one of the eight batteries would go out about every 3 monthes and then I would have to check all the batteries to find the one bad cell, frustrating. It was maddening constantly having to repair or check my shade batteries.I had a great idea, create my own battery packs with lithium ion rechargeable 18650 batteries and then use a solar panel to recharge them. Thats where these solar panels come in. I purchased these panels, soldered them together and hot glued to some ABS plastic. Not perfect but good for a prototype.Everything worked great and I am going on 2 years with the same lithium-ion rechargeable batteries, nice!I just purchased more panels to remake everything look more professional as seen in the pictures.Note:- My shades are 12 volt and you would think two 6 volt solar panels would work, not for me apparently. The panels are on the inside of hurricane e-glass windows so I need 3 panels to get 12 to 14 volts.- These solar panels charge a home made battery pack with three 3.7 rechargeable lithium ion batteries. I know this does not equal 12 volts but come to find out these batteries can collectively be charged up to 14 volts.- The soldering tab are very, very fragile to heat and when they melt off, good luck trying to fix it. I have learned to use a very quick soldering technique to tinning the tabs, let cool and then quickly solder a wire. Also I try to only use the copper soldering tab in the center of the panel.