Skip the auto shop - Our mechanics make house calls

Q: I have a 2011 Honda Accord coupe battery keeps going dead, replaced battery alternator was tested by Honda...still having the same

asked by on

I have a 2011 Honda Accord coupe battery keeps going dead, replaced battery alternator was tested by Honda...still having the same

My car has 103146 miles.
My car has an automatic transmission.

If the battery is new (or has passed a load test) and charging system output has been measured and is within specifications, the only reason a battery will discharge is if the car sits for a long period of time (batteries will self-discharge even if not used) or if there are parasitic (excess) loads on any of the car’s electrical circuits. If there is excess current flow that is slowly draining the battery, a Mechanic would use an ammeter to test all of the various circuits until the faulty circuit is found. Then that circuit is traced to find the fault and repair it. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request an electrical diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. I have a 2011 Honda Accord coupe battery keeps going dead, replaced battery alternator was tested by Honda...still having the same

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

Q: Vehicle won't start...one click.

Hi there. What seems to be happening is there is a parasitic load on the battery when the ignition key is off. What this means is that something is on when it should be off. To check this condition, first...

Q: EPC Check Light is on followed by an engine fault

The EPC light refers to the Engine Power Control indicating a potential engine malfunction which is a general warning that could mean many different things such as the engine speed sensor, mass airflow sensor, or other issues related to throttle...

Q: If slave master cylinder is bad, will that cause the car not to hold when parked in gear?

From your explanation of the situation, it sounds to me like your vehicle may need a new clutch. If you are in gear and the vehicle struggles to move and the engine speed increases, the transmission is slipping. A failure...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...