good voltage

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    2015 Yamaha Low Run-time

    I have a 2015 Yamaha with new batteries. On a level street, I can get about 30-minutes of run-time, and then it begins to slow (or die). I installed a meter, where I see 50V and 170AH after charge. In addition, each battery reads approximately 8.5V with a multimeter. It seems to get a proper...