Car won't stay charged for some reason mercury charging ...

Q: Car won't stay charged for some reason

asked by on July 11, 2017

I recently brought a battery used jumper cables to charge it drove around the neighborhood for about 30 minutes to an hour park the car turned it off as a precaution because i was scared for the other day the battery was weak it did the same thing it turned it back on just to make sure it would crank in it did but the next morning I came out to the battery almost dead how did I know because I could hear the door icon faintly telling me it was open.

My car has 182600 miles.
My car has an automatic transmission.

Hello, thank you for writing in. Using used battery comes with no guarantees that they will work correctly. The battery may be having issues holding a charge. The alternator may also have issue charging the battery. Both should be tested with a voltmeter or at your local parts store. Your vehicle’s dashboard should have a voltage gauge that tells you what the alternator is sending the battery. As long as it is around 14 volts, the battery is getting what it needs to charge. If the battery and alternator are fine, you may have a paraditic draw sucking power from the battery when the car is off. Only further testing will tell. For more help, contact our service department to schedule an appointment.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Temperature gauge does not work - 1998 Mercury Grand Marquis

You will need to test the computer to scan for data of the temperature sensor to see if the computer is reading the correct temperature as tested externally on the coolant sensor. If the sensor is not accurate then replace...

broke belt, replaced belt, now car will turn over but will not crank

Check the lower left side of the engine to check to see if the crankshaft speed sensor was damaged when the belt was broke or when the new one was replaced. It has two wires and a connector. The wires...

The VVT solenoid

Hello. It may be possible to access the solenoid from within the motor, however that would require disassembly of the engine, or at least the valve train. You may be able to access it by removing the valve cover. Regards,...

Related articles

How Do I Prepare My Car for Summer?
Summer's Summer's heat, dust, and stop-and-go traffic will take their tolls on your vehicle. Follow these tips to ensure optimum wellness of your car: Air Conditioning: Have your air conditioning inspected by a qualified technician. Newer models have...
The Do's and Don'ts of Jumpstarting a Car
Knowing how to jumpstart a car is a skill all drivers should have. Always ground the circuit and connect the jumper cables to the proper terminals.
How to Check the Voltage of a Car Battery
There are few things more frustrating than discovering that your car won’t start because the battery is dead. A mechanic can measure...