Skip the auto shop - Our mechanics make house calls

Q: I got a new battery new alternator put in but my battery just gets drained I keep having to buy new batterys

asked by on

I've got a new alternator put in a new battery and my car just keeps dying it just drains the battery and keep having to buy new batterys it happens everyday

A: This may be a sign of a failing voltage reg...

This may be a sign of a failing voltage regulator or potentially a bad grounding problem causing a draw on the system. The voltage regulator is a unit that regulates the charging of the battery by the alternator. Often times this will result in the alternator allowing too much power to be delivered to the battery resulting in damaging wires and prematurely sometimes destroying the battery. In other cases it may result in the alternator not supplying enough power to the battery, resulting in undercharging the battery or not charging it at all. In either case, I would recommend having an expert from YourMechanic come to your location to diagnose your vehicle’s charging system.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Can't figure out why my car won't start

Your car is equipped with a security system that turns off the fuel system detects if the car is being stolen. This can be caused by a key, the key sensor, or the anti-theft module. The most common cause of...

Q: My car will turn over but will not start

Hi there: Most of the time, this type of starting issue is caused by an ignition system component failure. On your MB, it may include the ignition coil, crankshaft position sensor or electronic ignition system faults. The best way to...

Q: My 2006 Kia will not start.

Hi there. If your engine stalled out and will not restart for the computer thinking that the transmission is in gear when its in park, then the transmission position switch (sensor) needs replaced. The switch (sensor) lets the computer know...

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...