Car batteries rarely give much warning. Summer heat weakens them, then the first −15 °C morning finishes them off. A battery that started the car fine in October can leave you stuck in January.
Our test measures how much cranking power the battery can still deliver against its rating, not just its voltage. We also check the alternator's charging output and the starter's draw, because a battery that keeps dying is sometimes the victim, not the cause.
Many newer cars, especially those with automatic start-stop, use AGM batteries, and some need the new battery registered with a scan tool so the charging system treats it correctly. We fit the type your car was built for.
Why it matters
Cold is hard on batteries
A battery puts out less power when it's cold, while a cold engine with thick oil takes more effort to turn over. Weak batteries tend to fail on the coldest morning of the year.
Parked cars still draw power
Alarms, keyless entry and connected modules all draw a little current while the car sits. Short trips across town don't give the alternator time to put it back.
A no-start costs more than a battery
Between a tow and a missed day of work, a dead battery gets expensive. A test takes a few minutes and tells you if yours has another winter in it.
Signs it's time
- Slow cranking on cold mornings
- Clicking when you turn the key or press start
- Battery warning light on while driving
- Dim headlights at idle
- White or green corrosion on the terminals
- Battery more than four years old
What's included
- Battery test for cranking power and overall health
- Alternator charging output check
- Starter draw test
- Terminals and cables cleaned, or replaced if corroded
- Replacement matched to size, terminal layout and type
- Battery registration on cars that need it
- Old battery taken for recycling
How often
Test every fall after year three
Most batteries last about three to five years. A test before winter catches a weak one while it still starts the car.
