I bought this to connect to the Jackery 1000. When I took the cable out of the box, I noticed that the red connector was on the wrong side to connect. Jackery Harbour. The way it was set up forces you to connect the positive (red) terminal of the solar panel to the negative (black) terminal of the jacket. Machining alone loosened the connection on one side of the cable and easily broke it off. My husband managed to solve both problems. He unplugged the connector and switched it so that the red one could be mated with the red one on the jacket. Now it is definitely working and being charged by the solar panel. I don't know if it would have worked any other way, but I was afraid to risk connecting it backwards to such an expensive battery.
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