Today's vehicles depend on dozens of electrical systems, and one weak link can leave you stranded. Jay's Auto Service tests and repairs batteries, alternators, starters, wiring, fuses, lighting and power accessories on foreign and domestic vehicles.

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If your car cranks slowly, won't start, has dim lights, a battery warning light, or windows and locks acting up, we'll test the whole charging and starting system before replacing anything, so you pay for what's actually broken.

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We install quality replacement batteries and can track down tricky problems like parasitic battery drain.

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Serving Woodlawn, Catonsville, Ellicott City, Columbia, Pikesville and Owings Mills. Open Monday through Friday, 8am to 5pm. Call 410-747-0044 or book online.

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Frequently Asked Questions

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How do I know if it's my battery or my alternator?

A weak battery usually means slow cranking after the car sits. A bad alternator often shows up as dimming lights, a battery warning light, or a car that dies while driving. We test both so you only replace what's bad.

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How long does a car battery last?

Typically three to five years, less with Maryland's hot summers and cold winters. We can test yours and tell you how much life it has left.

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My battery keeps dying overnight. Why?

Something may be drawing power with the car off, called a parasitic drain. We track down the circuit causing it.

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Related services: Diagnostics, Engine & Cooling System Repair, AC & Heating.