2000 Posts and climbing!!!
Join Date: Apr 2016
Re: Honda 5518 Battery Hot Issue
You have a battery temperature light? Or did you mean an engine overheating warning light?
If it is an engine overheating light, then I would suggest getting an external temp reader and see how hot the engine gets.
And when you had the thermostat out for testing, did the coolant passages seem reasonably clean, which no crud built up on the walls?
As well maybe check the radiator:
-that it still flows well. Maybe when you had it fixed, they didn't do a great job?
-that the fins on it are clean, fairly straight, and still connected to the coolant pipes
-that the fan for the rad is also clean, and spinning properly (for example, the Kawasaki FR651V engine in my zero turn had the fan incorrectly installed at the factory, causing my engine to overheat)