Skip the auto shop - Our mechanics make house calls

Q: Repeated dead batteries - 1990 Honda Accord

asked by on

Have replaced battery in my 1990 Honda Accord 5 times in 18 months. Every few weeks it goes dead, like this morning. Was told that the alternator isn't the problem. Mechanic said a scan showed my radio antenna was incorrectly wired and he disconnected it entirely. New battery after that has lasted 4 months. Note: although my radio antenna is apparently disconnected, my radio works just like before, no static or fading in and out. Wondering if it's really disconnected? I do NOT drive a lot, I know that's an issue, but any car with a new battery should be able to sit in a garage for a week or 10 days at the most and not go dead. Please help!

My car has 137000 miles.
My car has an automatic transmission.

A: This sounds like you may have a slow batter...

This sounds like you may have a slow battery drain pulling power from somewhere in the car. Start by checking to be sure all interior lights, etc. are off when shutting the doors. Check to make sure things like the stereo are not powered on when the key is off.

This may also be something caused by a bad or failing voltage regulator. This is a unit that regulates the charging amperage of the battery by the alternator. When this is not working properly, it can cause the battery to not be charged sufficiently, resulting in a dead battery much more frequently.

I would recommend having a professional mechanic, such as one from YourMechanic, come to your location to inspect your charging system and suggest any necessary repairs.

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

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 I tow my car with the front wheels on the ground?

Towing your car might be unavoidable, and while Honda doesn’t recommend ever towing your Accord with the front wheels on the ground, there are a couple of things you can do in this situation. Here’s what you need to know:...

Q: Hear clicking sound while driving

Hello. A clicking sound while driving can be caused by a number of issues. It can be a small rock stuck in the tire tread or it can be something more serious. If the noise goes away when you hit...

Q: Won't stay running

Hello and thank you for your question. It seems to be the transmission that is causing the engine to stall out when you are putting the vehicle into drive. The transmission could have a converter clutch lock up issue causing...

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 Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.