NeoTat getting hot

[tat2stave]

I had a new vivace. Got hot right out of the box. Never took over 9v

[JohnnyV]

I use A 4.2mm Vivace with the magic motor and I run it between 6 volts and 7.4 volts depending on mag size. I use 9 - 25 mags with disposable tubes. and its never heated up. I'd contact the company and ask about it.