I don't have that one, but I have one of the A4 sized onyx tablets. I use it for sheet music, turning pages with an air turn pedal I get about 3-4 weeks on a c

I don't have that one, but I have one of the A4 sized onyx tablets. I use it for sheet music, turning pages with an air turn pedal I get about 3-4 weeks on a charge, albeit with somewhat light use