- A parasitic draw occurs when a component in your car continues to draw power even when the engine is off. This can be caused by a faulty alternator or a poorly-installed stereo system.
2. Faulty Battery:
- A damaged or old battery may no longer hold a charge, causing it to drain quickly.
3. Leaving Car Doors or Trunk Open:
- Keeping the doors or trunk of your Mercury Sable open for an extended period can drain the battery as the interior lights stay on.
4. Excessive Electrical Load:
- Installing too many additional electrical components or accessories, like high-powered amplifiers, can strain the battery beyond its capacity.
5. Faulty Charging System:
- If your car's alternator is not functioning properly or if there's a problem with the voltage regulator, it won't be able to recharge the battery effectively.
