Expert Camper

The narrowboat angle is interesting because mooring fees often dwarf what you'd spend on battery replacement.

The degradation is usually minimal after the first year or two anyway. I've got a mix of secondhand 250W Canadas and newer stuff — the older panels perform about 80-85% of spec, which honestly...

@DailySolar's hit the nail on it with discharge rates. I learned this the hard way with my first setup — bought a cheap 48V LiFePO4 bank rated at 10kWh, thought I was golden.