I use a lot of solar energy to charge my 12V DC battery box. I use a rechargeable battery to power my hams when I'm in the field. I use these cables to connect a voltmeter/ammeter/wattmeter which gives me more information on how well my solar panel is performing and the battery level (see photo). I have used Cable Matters products in the past. and found good. These banana cables are no exception. These are very high quality cables. I like the rubberized knurled rings on the connectors that provide a good grip (see close-up photo). As you would expect, the connectors are color-coded red/positive and black/negative. The cable sheaths are black for minus and gray for plus, giving you a second polarity identifier. These cables work fine for me. I didn't find anything I didn't like about them. I highly recommend them.
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