Does the voltage of a car battery decrease over time?

I’m a new car owner and concerned about my car’s battery voltage decreasing. However, many have told me that this isn’t true! So, can you help me understand whether the voltage of a car’s battery decreases over time?

Find out if you’re getting ripped off on your car insurance in less than two minutes.
No spam · No long forms · No fees
Find savings (100% Free)
rating white
3.5k Ratings
Answer provided by
Annette Maxon
Answered on Jul 15, 2022
Great question!
As you drive your car, you’re recharging the battery, but the voltage of a battery can decrease over time. Ultimately, if you have a faulty alternator, leave your headlights on overnight, have a bad charging system, or there’s some other electrical drain that uses energy even when the car’s not running, then your battery voltage will decrease.
Generally, this isn’t an issue, especially for newer cars or those kept in good condition. But, if you’re looking for other ways to keep your car in working condition for as long as possible, look further than Jerry.
A top-rated super app and licensed broker, Jerry makes it easy to find cheap, personalized car insurance quotes. In less than a minute, Jerry handles everything from gathering affordable quotes to helping you switch plans, and even cancel your old policy. With this level of service, it comes as no surprise that Jerry is the fastest and cheapest way to keep your car safe at any battery voltage.

Here to save on car and home insurance? Great, you do that. We’ll do everything else.

Sign up in under a minute.
No need to fill out forms or shop around. Sign up in 45 seconds to start saving. Jerry does the rest.
Jerry collects and analyzes your current coverage.
Say hello to Jerry, your new insurance agent. We’ll contact your insurance company, review your current plan, then find the coverage that fits your needs and saves you money.
Get the best options before your renewal.
Jerry does all the picky, busy work by comparing prices and coverage from more than 50+ insurance companies. We compare what we find to your current policy and offer you the three best options before every renewal.

Easiest way to compare and buy car insurance

No long forms
No spam or unwanted phone calls
Quotes from top insurance companies
Find insurance savings — it's 100% free