OK, some data.

I had charged it Monday morning and went flying where I accumulated 30 minutes. This afternoon just for fun I turned it on and the radio was at 3:28 when the alarm went off. I use a regular module not the power hungry tunable one.

The discharge rate must be less than 300. It must be 200 or so.

I think the point of my original post was to indicate to the original poster that indeed he does have a problem as other such radios do much better than the 28 minutes he was suffering with.

Maybe I'll slap that tunable module in and try it. That thing gets outright hot so I suspect it burns a lot of juice.