Q: Just put new alternater on but battery not charging

asked by on

Every time I start my car the battery runes down
My car has an automatic transmission.

The alternator in your car charges your battery with the assistance from the voltage regulator which is something that regulates the amount of voltage being sent to the battery via the charging from the alternator. It’s function is to not over or under charge the battery, but to keep it at a specific and constant charge. When this is not working properly, this can cause the battery to be over or under charged often times resulting in the battery dying. I would recommend having a qualified mechanic, like one from YourMechanic, come to your home to diagnose your draining battery and help you repair it as necessary.

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
  1. Home
  2. Questions
  3. Just put new alternater on but battery not charging

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: Van jerked with a clunking sound, transmission fluid leaked

The transmission may have blown out the front pump seal where the torque converter goes into the transmission. This can be due to the transmission front pump bushing is bad or another problem. You have both axle seals that may...

Q: Q: Problems starting car

Hello. It sounds like the key or the ignition switch could be having contact issues. There are contacts inside the ignition switch. To eliminate a worn key resistor, try another key and see if you have the same result. If...

Q: Car wont start and electronics acting up

As long as no water has gotten into the car, sight unseen I would suggest checking for loose connections. Positive and negative battery cables, not just at the battery. Check the other ends - where the positive cable connects to...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...