Bad battery/horn?

[jw1000]

Driving home from work today, I realized that my horn sounded muffled and after googling the issue, it said that it could be a wiring issue, or blown fuse. I also realized that after changing my batter terminal connectors, that they are super corroded, is this most likely a battery issue and should I just get a new one?

 

[toypaseo]

Corroded terminals does not necessarily mean you need a new battery...

 

[jw1000]

Corroded terminals does not necessarily mean you need a new battery...

I am aware of that, however this has been an ongoing issue and it is occuring on both terminals, whereas it usually just occurs on one and can signal undercharging or overcharging.

 

[jw1000]

So I cleaned my battery terminals and the horn is now working, so I am thinking that was the electrical issue. I want to prevent this from happening in the future, because I have tried grease before and it has not worked.

 

[toypaseo]

I use brass terminals and treated felt battery terminal washers. Barely any corrosion for me after I switched.