Skip the auto shop - Our mechanics make house calls

Q: Went got a test at Autozone for alternator, she stated everything test normal but battery voltage is too low? What does that mean?

asked by on

Went got a test from autozone for my alternator! When she ran the test she stated everything us normal bur read battery voltage is too low! What does that mean? Do ii need a new battery or alternator?

My car has 17800 miles.
My car's transmission is unknown to me.

A: Hello. This could mean the alternator is no...

Hello. This could mean the alternator is not charging the battery high enough or the battery will not accept and hold a charge. You may need to replace the battery first, then recheck the alternator charging system for proper operation. If you need help, an expert from YourMechanic can come to your home or office to inspect why your battery does not hold a charge and replace the alternator if necessary.

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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Trouble starting car

Engine stalls are often caused by a malfunctioning sensor if not lack of fueling or ignition system maintenance. A trained technician will take them all into consideration. Worn spark plugs may cause a stall on their last leg and prove...

Q: Car not starting after battery change.

Hello! When new problems arise, after a recent service, the best place to start is the most recent service. One of the terminals being left loose can cause an intermittent no-start situation. As well as no power at all, a...

Q: Truck not starting after replacing starter

Hi, is the check engine light on? Sometimes a no start will throw a diagnostic code which will help in solving the issue. Certain sensors, such as the crankshaft position sensor, are needed to run the engine and if the...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...