Batteries and charging
Battery, alternator and starter testing.
How soon does it need to be in?
Prefer to talk?Call (571) 749-1731
What is included
Slow cranking or a car that will not start. We test the whole charging system, so you do not replace a good battery to fix a bad alternator.
- Test the battery, alternator and starter together
- Check cables and terminals for corrosion
- Replace only the part that failed
- Battery registration on newer cars that need it
When to book
- Slow cranking in the morning
- Clicking and no start
- The battery light is on
- Dim headlights or flickering dash lights
- The battery is more than three years old
How it works at John's.
No surprises. You know what it needs and what it costs before we start.
- 1
Tell us what is going on
Request a time here, call, or use our after-hours drop-off.
- 2
We find the cause
We test before we replace, then show you what we found.
- 3
You say yes first
The price comes broken down. Nothing gets done without your yes.
A good shop earns your trust.
5.0 151 reviews on GoogleQuestions people ask
Is it my battery or my alternator?
Dead after sitting overnight usually points to the battery. Dying while you drive, dim lights or a battery light on the dash usually points to the alternator. We test the battery, alternator and starter together, so you do not buy a battery you did not need.