Jumper cable clamps on a car battery in an engine bay
Mobile mechanic · Battery replacement

Battery replacement at your home or work

We test the battery and the charging system first, so you only replace what has failed. Then we fit the new battery right where your car is parked.

  • We come to your home or work
  • You approve the price first
  • Most jobs finish in one visit
Open 7 days9 AM to 9 PM, 7 days

Book a visit

4 short steps. We confirm your time by text or call.

What is going on with the car?
When do you need us?
Where is the car?
Where should we text you?

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A standard on-site diagnostic fee applies and is credited toward approved repairs.

Battery replacement

Signs your battery is wearing out

Tools and parts come with the tech. Most jobs finish in one visit.

Engine turns over slowly, worst on the first start of the day
Clicking when you turn the key
Dim headlights or a flickering dash at startup
White or green crust on the battery posts
Battery looks swollen or cracked, or smells like rotten eggs
A newer battery that still keeps going flat

Why car batteries give out

Most car batteries last about three to five years, and less where summers are hot. High heat dries out the fluid inside and speeds up corrosion of the plates, so summer is often harder on a battery than winter. The National Weather Service's 1991 to 2020 average at DFW Airport is 20 days a year at 100 degrees or more.

Other things drain a battery early. Short trips do not give it time to recharge. A light left on, loose or dirty cable ends, or a part that keeps drawing power after you lock the car can run it down. A weak alternator can also leave a good battery flat.

Before we arrive: safe steps

If you want to try a jump-start, follow your owner's manual step by step and wear eye protection. Batteries give off hydrogen gas that can ignite, so keep sparks and flames away. The last negative clamp goes on a solid ground point away from the dead battery, not on its negative post. Never jump a frozen battery. If you are not sure how to do it safely, skip it and book a visit.

If the car will not start at all, leave it where it is. Note what you hear when you turn the key, and have the year, make and model ready when you book so the right battery comes with the tech.

How we replace it on site

We test the battery first, then check the cable ends and the alternator's output with the engine running. If the battery is the problem, you get the price before anything changes. Once you approve it, we take out the old battery, clean the terminals and clamps, install one that fits your car, and secure the hold-down so it cannot shift.

We replace batteries across our Collin County area, from Frisco and Plano to McKinney and Allen, and we also come to Van Alstyne. The visit has a standard diagnostic fee, and we credit that fee toward the new battery if you say yes. Fill in the booking form, ask in the chat, or text or call (214) 784-2056. Once your request comes in, we confirm the time by text or phone.

Service area

Where we come for battery replacement.

We come to you in these cities. Pick yours.

How it works

Three steps. Usually one visit.

Most jobs finish in one visit.

01

Book online or call

Tell us the symptoms, your vehicle and your address.

02

We come to you

Your driveway, your office lot or the curb. No tow, no waiting room.

03

We diagnose and repair on site

You approve the price before any repair work begins.

You approve the price before any work begins.No surprise on the bill.
Questions

Good to know.

How long should a car battery last?

For most cars, about three to five years, and often less in hot climates. To see how old yours is, look for a date sticker on the top or side of the battery.

Should I test a battery that still starts the car?

Yes, once it is about two years old. In a hot place like North Texas, a test every year shows how much strength is left, so you can replace it before it leaves you stuck.

Do I need a new battery or a new alternator?

If a new or freshly charged battery keeps going flat, the alternator may not be charging it. We test both before you buy anything, so the right part gets replaced.

Can I clean the corrosion myself?

You can, with care. Battery acid is highly corrosive, so wear eye protection and gloves and keep the crust off your skin, clothes and paint. If the cable ends are loose or eaten away, cleaning will not be enough, and the clamps may need attention too.

What will the visit cost?

It depends on the battery your car needs. The on-site test carries a standard diagnostic fee, credited toward the new battery when you approve it. You see the full price before we start.

Rattling, grinding
or not starting?

Tell us what is going on. A mechanic comes to your driveway with the tools and the parts.

Open 7 days
Call nowBook a visit