Actually, my batteries do. Three days of coastal overcast and drizzle have meant not really enough sunlight to the solar panel. Some sunlight makes it through the clouds, but I could use more.
So I drove inland, to Salem, this morning. Whee! Blue skies! Big ol' sun! Happy batteries!
The down side is that it's hotter here. The forecast is for 90°, as compared to 65° at the coast. It's a trade-off. I'll get the batteries all charged up, get some supplies, then head back to the coast. It's supposed to clear up there tomorrow. We'll see.