Car Battery Replacement, Done Right in Your Driveway
Car won't start, cranking slow, or just clicking? We come to where your car is parked, test the battery and charging system, and install the right battery for your vehicle at your home or workplace. No tow truck. No jump just to get to a shop.
- ASE Certified
- We Test Before We Replace
- Upfront Pricing
- 12-mo / 12k-mile Warranty
Is Your Car Battery About to Quit?
Batteries usually give a warning before they leave you stranded. If you notice any of these, get it tested before the next cold morning.
Slow or labored crank
An engine that turns over slower than usual, especially on cold mornings, is one of the most common signs of a battery losing strength.
Clicking, no start
A rapid clicking when you turn the key or press start usually means the battery can't deliver enough power to the starter.
Needing frequent jumps
If the car starts after a jump but is dead again the next day, the battery may not be holding a charge, or something may be draining it.
Dim lights at startup
Headlights or dash lights that dim when you start the car, or electrical features acting up, can point to a weak battery.
Battery is 4+ years old
Most batteries last about 3 to 5 years. If yours is getting up there, a test can tell you how much life it has left.
Not sure what's wrong?
Describe what your car is doing and we'll tell you what we think it is and what testing it needs.
Battery Testing and Replacement at Your Location
A car that won't start doesn't always need a new battery. A failing alternator, a corroded cable or something draining the battery overnight can all leave you with a dead car, and a new battery won't fix any of them.
We test first. Our fully equipped service van brings the tools to load test your battery and check the charging system where your car is parked, so you get an honest answer and the right battery for your vehicle.
Battery & charging system test
We load test the battery and check alternator output and charging voltage to confirm whether the battery, the alternator or a parasitic drain is the real problem.
Supply & install the right battery
We install a quality battery matched to your vehicle, including AGM and EFB batteries for start-stop and newer vehicles, then test that it's charging properly.
Terminal cleaning & protection
Corroded terminals can keep even a new battery from doing its job. We clean the terminals and cable ends and protect them against future corrosion.
The Most Common Reasons a Car Battery Dies
Knowing the likely cause helps you understand your repair estimate, and keeps a new battery from dying for the same reason.
Age and normal wear
Every battery loses capacity over time. After a few years of charging and discharging, it can no longer hold enough power to start the engine reliably.
Heat and cold
Summer heat breaks down a battery from the inside, and cold weather exposes the damage by demanding more power to crank a cold engine.
Short trips and sitting
Short drives don't give the alternator time to recharge the battery, and a car that sits for weeks slowly drains down. Both shorten battery life.
Charging problems and drains
A weak alternator, a corroded connection or a component that stays on after the car is off can keep the battery from staying charged.
Back on the Road in Three Simple Steps
Call or text us
Call, text or book online with your year, make and model and what the car is doing. We'll schedule a visit to test the battery and charging system.
We come to you
Our mobile service van arrives at your home or workplace with everything needed to test and replace your battery, so there's no tow and no jump to get to a shop.
Drive with confidence
We install the right battery on the spot, confirm it's charging properly, and back the work with a 12-month / 12,000-mile warranty.
Why Drivers Choose The Car Medic for Battery Replacement
Talk to the tech, not a call center
When you call, you talk directly to John Rankin, the ASE-certified technician who will work on your vehicle.
Lower overhead, fair prices
No shop rent means we pass the savings on to you, without cutting corners on parts.
Warranty on all work
12-month / 12,000-mile coverage on the parts we supply and the labor we perform.
Pickup & delivery available
For major repairs or unsafe weather, we pick up your vehicle, fix it at our offsite repair facility, and bring it back.
Mobile Battery Replacement Across the Miami Valley
We bring battery testing and replacement to homes and workplaces throughout Miami, Montgomery, Greene, Clark and Warren counties. Find your community below, or call and we'll tell you right away if you're covered.
Rated 5.0 by Drivers Across the Miami Valley
★★★★★“Good guy, more than fair prices, and very accurate diagnosis.”
— Harold Poland
★★★★★“Got me right in, drove me back to work and had an answer to me within the hour.”
— Jordan Powers
★★★★★“John is one of few remaining honest mechanics.”
— April Hall
Car Battery Replacement FAQs
Straight answers to what drivers ask before booking battery service.
How much does car battery replacement cost?
It depends on your vehicle. Battery size, type (standard, AGM or EFB) and where the battery sits all vary by make and model, and some sit under a seat or behind trim instead of under the hood. We start by testing the battery and charging system to confirm the battery is actually the problem, then give you an upfront estimate for the replacement. Diagnostic testing is a separate charge from the repair itself, and no work begins until you approve the estimate. There are no hidden fees. Because we don't pay rent on a traditional shop, our overhead is lower and those savings are passed on to you. Call or text 937-609-3554 with your year, make and model to get on the schedule.
Can you replace my car battery at my home or work?
Yes. We are a mobile mechanic, so we test and replace batteries right in your driveway, apartment lot or workplace parking lot. All we need is a safe spot to park next to your vehicle. That means no tow and no trying to jump your car just to get it to a shop.
How do I know if I need a new battery or just a jump?
A jump only gets the engine started. If the battery is worn out it won't hold a charge, and you'll be stuck again the next time the car sits. Slow cranking, a clicking sound when you turn the key, needing more than one jump, or a battery that is four or more years old are all signs it's time to test it. A load test tells us whether the battery can still do its job.
How do I know if it's my battery or my alternator?
The symptoms overlap, which is why we test before replacing anything. A car that won't start after sitting but runs fine once it's jumped often points to the battery. A car that starts and then dies while driving, or a battery light that comes on while the engine is running, often points to the alternator. We test the battery, the alternator output and the charging voltage together so you only pay for the part you actually need.
How long does a car battery usually last?
Most car batteries last about 3 to 5 years. Heat, cold, short trips, a car that sits for long stretches and extra electrical accessories can all shorten that. If your battery is getting close to that age, a quick test before winter or a long trip can save you from a no-start.
Why does my battery keep dying?
A battery that keeps going dead is usually worn out, not being recharged because of a charging system problem, or being drained while the car is parked by something that stays on (called a parasitic drain). Loose or corroded terminals can cause it too. We test for all of these so a new battery doesn't end up dead for the same reason.
Does cold weather kill car batteries?
Cold weather doesn't usually kill a healthy battery, but it exposes a weak one. Cold slows the chemical reaction inside the battery while the engine needs more power to crank, so a battery that was barely getting by in the fall often fails on the first cold morning. Summer heat does a lot of the damage that shows up in winter.
What type of battery does my car need?
That depends on your vehicle. Many newer vehicles, especially ones with start-stop systems, require an AGM or EFB battery instead of a standard flooded battery, and using the wrong type can shorten its life or cause electrical problems. We match the battery to your vehicle's requirements.
Do newer cars need anything special when the battery is replaced?
Some do. Certain vehicles need the new battery registered with the car's computer so it charges correctly, and some need windows, radio or other settings reset afterward. We take care of what your vehicle needs as part of the job.
How long does battery replacement take?
Most battery replacements are done during the visit once the testing is complete. Batteries that sit under a seat, inside a fender or behind trim take longer, and some batteries have to be ordered. Either way, we tell you upfront.
What do you do with my old battery?
We take it with us for proper recycling. Car batteries contain lead and acid and shouldn't go in the trash, so you don't have to haul it anywhere.
Is your battery work under warranty?
Yes. All work is backed by our 12-month / 12,000-mile warranty on the parts we supply and the labor we perform.
What areas do you serve for mobile battery replacement?
We are based in Troy, Ohio and serve communities across the Miami Valley, including Troy, Tipp City, Pleasant Hill, Covington, West Milton, New Carlisle, Huber Heights, Vandalia, Fairborn, Beavercreek, Kettering, Centerville, Springboro. Not sure if you're covered? Call or text 937-609-3554 and we will tell you right away.
What forms of payment do you accept?
We accept cash, Visa, Mastercard, Discover, American Express, Apple Pay and Google Pay. Payment is due when the job is complete.
Car Won't Start? Let's Get You Going.
Tell us what your car is doing and we'll get you on the schedule. You approve the repair price before any work begins, and the work is done right where your car is parked.
The Car Medic LLC · Troy, OH 45373 · 937-609-3554 · info@thecarmedicllc.com
Mon–Fri 10am–8pm · Sat 10am–2pm · Sun Closed