How should I check for an electrical problem if a 2001 Hyundai Tiburon battery keep charged although the Battery and alternator are new fuses good?

Here are a few steps to check for an electrical problem if the battery in your 2001 Hyundai Tiburon keeps charging even though the battery and alternator are new and the fuses are good.

1. Perform a voltage drop test:
   • Check the voltage at the positive battery terminal and the chassis. The voltage should be close to zero. If the voltage drop is more than 0.5 volts, there could be a problem with the battery cable or terminal.
   • Check the voltage at the positive battery terminal and the starter solenoid. The voltage should be the same as the battery voltage. If the voltage drop is more than 1 volt, there could be a problem with the starter cable or solenoid.
   • Check the voltage at the alternator B+ terminal and the battery positive terminal. The voltage should be around 14 volts when the engine is running. If the voltage is low, there could be a problem with the alternator or the wiring.

2. Check the ground connections:
   • Check the ground connection from the battery to the chassis. The connection should be tight and clean.
   • Check the ground connection from the engine to the chassis. The connection should be tight and clean.

3. Check the alternator:
   • Visually inspect the alternator for signs of damage, such as cracks or loose wires.
   • Test the alternator output with a voltmeter. The output voltage should be around 14 volts when the engine is running.

4. Check the wiring:
   • Inspect the wiring for signs of damage, such as cracks, frays, or loose connections.
   • Ensure the wiring is properly routed away from sharp objects and heat sources.

5. Perform a parasitic drain test:
   • Disconnect the negative battery terminal and connect an ammeter between the terminal and the negative battery cable.
   • Remove one fuse at a time and check the ammeter reading. If the ammeter reading drops when a fuse is removed, the circuit associated with that fuse is causing the parasitic drain.

If you find any issues during these checks, repair or replace the affected components as necessary. It's important to have electrical issues diagnosed and resolved by a qualified mechanic to ensure the safety and reliability of your vehicle.