time adjustment?

[lmh2402]

i need these for tomorrow. http://allrecipes.com//Recipe/refried-beans-without-the-refry/Detail.aspx

but i need my slow cooker for something else in the morning. so i want to cook them overnight.

i've never made them before. recipe says 8 hours on high and add liquid as needed.

i would like to put it on low, with hopes of not needing to add liquid. and then leave it overnight.

how long would you cook for?...10 hours on low?

thanks