Car cranks slowly or struggles to start
A slow, labored crank means the battery is weak and will likely leave you stranded soon, often on the next cold or very hot morning. You can usually still drive, but plan on replacing the battery before it quits completely.
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Likely causes
- Battery losing capacity with age
- Summer heat wearing the battery out from the inside
- Cold weather cutting the battery's power
- Corrosion on the terminals
- Short trips that never fully recharge the battery
Try this first
- Switch off the A/C, heater, lights and radio before you start
- Crank in short tries of a few seconds, resting in between
- Once it starts, take a longer drive instead of a quick errand
- Find the date sticker on the battery to see how old it is
When to call us
- It cranked slower today than yesterday
- It has needed a jump in the last few weeks
- You'd rather replace the battery at home or work than get stuck
Call (469) 619-8700 or request online.
In danger or blocking traffic? Call 911 first.
We come to where your car is
Day or night: your driveway, the parking garage at work or the shoulder of the freeway.

Questions
01How long can I drive with a slow-cranking battery?
There's no safe number of days. Some batteries crank slowly for weeks; others die the next morning. If it's getting worse, replace it soon.
02Could a slow crank be something other than the battery?
Yes. A worn starter or a bad ground cable can also make the engine drag. If a new battery doesn't change anything, have a repair shop check the starter and wiring.
Also useful
- Car clicks but won't start
- Car won't start and makes no sound
- Car dies right after a jump start
- Battery light came on while driving
- Push-button start car won't start
- Key fob not working: can't unlock or start the car
- How Long Car Batteries Last in Texas Heat
- Signs Your Car Battery Is Dying
- AGM vs. Flooded Car Batteries: What's the Difference?
- Cold Cranking Amps (CCA) Explained
