Yes, but the voltages are so very low for a long life betavoltaic. You have two sides of the equation. You can have a high power battery but a short life, or a long life with low power.
This is because of the activity of the israbroad
opes used in the cells. The more active the nuclei, the shorter the half lives, but more power.
I'm sure you get the point.
These could be used to power laptops, however.