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Released in February, 2014 this model, the NV480, is Shark's attempt at an affordable , professional grade, household vacuum.

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Battery or charging cable malfunction?

This is not my exact model shark rocket pro. I got mine new about 6 months ago. Love it, but suddenly will not charge. I have removed the 21.6V 1900mAh Li Ion batt (model# xfbt620) and tested with a multimeter. On top side it is marked with Right and Left indicators. When flipped over you can see TWO connections/ports on the left and ONE in the right. I placed - probe on right connector, and + probe on the inside connector on left = 19.8V

When I place the +probe on the outside connector on left side, I get 0 V.

I assume this means the batt is toast but hoping to confirm my analysis. Should I could test for continuity on the charger wire? Any help appreciated. So aggravated w idea of dropping 25%+of original purchase price to get it running again so soon 🙄

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Morgan Blakely, Are you saying that measuring the battery 1 way then you get 19.8Vthen revering the probes you get 0V? I the only thing I can think of right now that would cause that, is if your meter has a built in “protection” that makes it so you can’t measure “negative voltage” (ie positive probe on negative point and negative probe on positive point).

Also, 21.6V lithium battery seems a tad strange as lithium batteries usually go in increments of 3.7V (which would be 22.2V).

Testing the charger for output voltage is always a good first test. That way you know whether it outputs the correct voltage.

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Morgan Blakely will be eternally grateful.
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