Solar question again. Kinda long
OK, I bought a couple of Volkswagen solar panels off Ebay for $10 each. They are 3.2 watt 18.8 volt at max out put, 170 amp.
They can probably be had for free by going to the VW dealer and asking for them. They are used in the cars as they sit in port and the dealer lots to maintain the batteries. They plug into the cigarette lighter. My truck has a twin Optima split charge system. I also have 4 accessory or ciggarette type plugs that give constant power even when the ignition is off. My question is, can I plug more than one of these solar panels into my truck at the same time? And when the primary battery reaches peak charge will it then start to charge the second battery. Any thoughts? Since these things are so cheap I couldnt pass it up.
Any solar gurus out there? I do alot of camping out in the desert and would like to take advantage of these cheap little units. They are really well built.