Went to crank up our motorhome the other day to run it for a little and run the generator. The chassis battery was dead. Had to start it with the switch that draws from the house batteries. Let it run...
You might just try the battery connections. Put a meter directly on the battery posts and see if it reads differently than it does from the cable connections.
OR, like everyone else here has said, just throw it away, and then discover that it was a bad connection. Your choice.
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