Before I replaced my start battery I spent a day going through the entire battery and charger circuit. Checked and cleaned everything but it was no different. Waisted the entire day working in the engine room accomplishing nothing when I knew from the beginning it was the battery. Why keep hitting yourself in the head? Your battery is toasted!

I only had one battery. You have 2. Try this,, just replace battery #1 with battery # 2. If it starts there's no question, it 's the battery.

You're spending too much time on it.