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(303) 674-0198
Battery calls answered 24/7

Roadside battery replacement where your vehicle sits

D&J Towing handles roadside battery replacement any hour of the day or night, installing a new battery where your vehicle is parked. When a battery is too worn out for a jump to last, tell dispatch your year, make, model and engine so the right battery can be matched before the truck heads your way.

Cars and SUVsPickups and vansStart-stop vehiclesWork trucks
Battery installD&J Roadside
12VSwap
Matched byYear, make, model, engine
Start-stopTell dispatch
InstalledWhere it is parked
Dispatch24/7/365
Tap to call dispatch
MM01Battery quiz

New battery, a jump, or something else?

Answer what you can. The meter fills as the signs point toward a worn-out battery, and it switches to a warning when your answers point past the battery. If a jump is all it needs, our jump start service page covers that call.

1How old is the battery?
Under 3 years
3 to 5 years
Over 5 years
Not sure
2What happens when you try to start it?
Slow, labored crank
Rapid clicking, dim dash
Nothing, no lights
Click, but lights stay bright
Cranks normally, never fires
3Has it needed a jump lately?
No
Once
More than once
4Anything else you noticed?
Nothing unusual
Battery light or dimming while driving
Died while I was driving
Swollen case or rotten-egg smell
5Does the engine shut off at stoplights?
Yes, it has start-stop
No
Not sure
Battery wear meter0 of 5 answered

How to read the result: every answer adds to the meter, and some answers point past the battery.

Meter low

A jump may be enough

A younger battery that went flat once, after a cold night or lights left on, often recovers with a jump and a long drive. If it goes flat again within days, it is a replacement call.

Meter high

Time for a new battery

Age, a slow crank and repeat jumps add up to a battery near the end of its life. Ask for roadside battery replacement and give dispatch your year, make, model and engine.

Look past the battery

Probably not the battery

Bright lights with a click, a normal crank that never fires, or a car that dies while driving point to the starter, the charging system, fuel or ignition. A new battery will not fix those. Plan on a tow to your shop.

Do not jump it

Damaged battery

A swollen, cracked or leaking case, or a rotten-egg smell, means the battery is done. Do not try to jump it. Stay back from it and tell dispatch exactly what you see.

Start-stop vehicles generally use an AGM or EFB battery, and some need the new battery registered to the car. Mention start-stop when you call.
MM02Warning signs

Signs a battery needs replacing instead of another jump

A jump puts enough charge in a battery to start the engine. It does not bring back a battery that can no longer hold a charge. These are the signs AAA lists for a battery that is on its way out.

  • AgeB-01

    Past three years

    AAA puts the average battery lifespan at three to five years, and closer to three on vehicles loaded with electronics. If yours is in that range and slowing down, have it tested before the first hard freeze.

    Look for a date code on the case
  • CrankB-02

    Slow, labored starts

    The engine turns over a little slower every cold morning until one day it only clicks. That slow decline is a battery losing capacity, not a one-time drain.

    Worse on cold mornings
  • LightsB-03

    Dim lights, weak horn

    Headlights that look dim or yellowish, dome lights that flicker, a weak horn, or a radio and chargers that act up are all signs AAA ties to a failing battery.

    Most obvious at startup
  • JumpsB-04

    Flat again after a jump

    It started with a jump, ran fine, and went flat again a day or two later. A battery that keeps going flat after jumps is usually near the end of its life.

    Two jumps in a month is a pattern
  • CaseB-05

    Swollen or cracked case

    A bulging, cracked or heavily corroded battery is finished. Do not try to jump a battery in that condition. Leave the hood up, stay clear and call.

    Replace, do not jump
  • SmellB-06

    Rotten-egg smell

    A sulfur smell around the battery is another sign on the AAA list. Keep people back from the engine bay and mention the smell when you call so the driver knows before arriving.

    Tell dispatch what you smell
MM03Cold and heat

Why foothill winters finish off old batteries

Cold works against a battery from two directions. The chemistry inside slows down, so the battery delivers less power, while a cold engine with thick oil needs more power to turn over. AAA says starting a car in cold weather can take up to twice the usual current.

The damage often starts months earlier. Summer heat evaporates battery fluid and weakens the charge, and the first hard freeze exposes the weakness. That is why the first frozen morning at the trailhead or in the driveway is so often when an aging battery finally quits.

If your battery is past three years old, have it tested before the snow season. A borderline battery is far easier to deal with in your driveway than on a cold shoulder of US 285.

Battery strength as it gets colder
Mild dayFull strength
32°F, freezingAbout 65%
0°F, a hard cold snapAbout 40%

Source: AAA. A battery loses about 35 percent of its strength at 32°F and about 60 percent at 0°F, right when the engine needs the most current to start.

MM04The installation

What a roadside battery swap involves

Here is what installing a battery at the roadside generally looks like, start to finish, so you know what to expect while you wait.

  1. Match the battery

    Year, make, model and engine decide the battery size, terminal layout and type. Getting this right before the truck rolls is why dispatch asks.

  2. Check the cables first

    Loose or corroded terminals can look like a dead battery or a bad starter, so the case, cables and connections get a look before anything comes out.

  3. Negative off first

    The negative cable comes off first, then the positive. Doing it in that order keeps a tool from shorting against the body.

  4. Hold-down out, battery swapped

    The hold-down bracket comes off, the old battery comes out and the new one goes in. The hold-down goes back on so the battery cannot shift while you drive.

  5. Clean and reconnect

    Terminals are cleaned, the positive cable goes on first and the negative last, and the connections are tightened and protected against corrosion.

  6. Start it and check

    The engine starts, the warning lights go out, and you hear which settings your vehicle may need reset.

Start-stop, AGM and resets
Extended start-stop
Vehicles with extended automatic start-stop come with an AGM battery, and only an AGM battery should replace it.
Simple start-stop
Many simpler start-stop systems use an EFB battery. A vehicle that came with EFB can take EFB again. The wrong type can keep start-stop from working properly.
Battery registration
Some newer vehicles use a battery sensor and management system that has to be told a new battery is in. Skipping it can lead to undercharging, warning lights or start-stop that will not engage. Check your owner's manual or ask your dealer.
Radio, clock, windows
Disconnecting the battery can clear radio presets and the clock, and on some models the one-touch power windows need a quick reset afterward.
MM05Before you call

What to tell dispatch about your battery

A battery has to fit the tray, reach the cables and match what the vehicle's electrical system expects. A minute of detail on the phone is what lets the right battery be matched before anyone drives up the hill.

  1. Year, make, model and engine. The engine size is listed in the owner's manual if you are not sure.
  2. Whether it has start-stop. If the engine shuts off at red lights, say so.
  3. What happens when you try to start it. Slow crank, rapid clicks, one click or nothing at all.
  4. How old the battery is and if it was jumped. Even a rough guess helps.
  5. Exactly where you are. Road, mile marker or cross street, and whether you are in a garage, a lot or on a shoulder.
Battery match cardHave it ready
YearModel year of the vehicle
MakeFord, Toyota, Subaru and so on
ModelIncluding trim if you know it
EngineSize, gas or diesel, hybrid
Start-stopYes, no or not sure
WhereRoad, marker, lot or garage
What sets the price
Battery type and sizeWhere the vehicle isTime and conditionsWhether it becomes a tow

We accept cash, Mastercard and Visa. Ask dispatch for a quote when you call.

MM06When it is not the battery

When a new battery will not fix it

A battery only starts the engine. Once it is running, the alternator does the charging, and the starter does the cranking. When one of those fails, a new battery gets you nowhere, and the vehicle needs a shop.

  • AltN-01

    Charging system

    • Battery warning light on while driving
    • Headlights dim or flicker with the engine running
    • Starts with a jump, then dies a little later
    • Engine stalls while driving and needs a jump
    Tow ifa good or new battery still goes flat. The alternator or its belt is not keeping up.
  • StartN-02

    Starter

    • A single click or rapid clicking
    • Dash lights, headlights and radio work normally
    • The engine does not turn over at all
    • A jump start does not help
    Tow ifthe terminals are clean and tight and it still only clicks with bright lights.
  • FuelN-03

    Fuel, ignition, sensors

    • The engine cranks at normal speed
    • It never catches and runs
    • Warning lights may stay on
    • More cranking only drains the battery
    Tow ifit cranks strong and will not fire. The battery is doing its job.
Same callbecomes a tow

If the problem turns out to be past the battery, you do not need to start over. The same call to (303) 674-0198 turns into 24/7 emergency towing to your shop, your home, or our yard in Evergreen.

MM07Battery questions

Roadside battery questions

Not sure if it is the battery? Call and describe what the vehicle is doing. Dispatch will tell you whether it sounds like a battery, a jump or a tow.

Can you replace my battery where the car is parked?

Yes. Battery installation is part of our roadside service, and it is done where the vehicle sits, 24 hours a day. Give dispatch the year, make, model and engine so the right battery can be matched.

How do I know if I need a new battery or just a jump?

A battery that went flat once after lights were left on often recovers with a jump. A battery that is three or more years old, cranks slowly, or keeps going flat after jumps usually needs replacing.

My vehicle has start-stop. Does that change anything?

Yes. Start-stop vehicles generally use an AGM or EFB battery, and a vehicle that came with AGM should get AGM again. Some also need the new battery registered to the car. Tell dispatch about start-stop when you call.

Will I lose my radio presets?

You might. Disconnecting the battery can clear radio presets and the clock, and some models need the one-touch power windows reset afterward. Your owner's manual explains the reset for your vehicle.

What if a new battery does not fix the problem?

Then the cause is likely the charging system, the starter, or fuel and ignition. The same call becomes a tow to your shop, your home, or our yard. We accept cash, Mastercard and Visa.

Battery dead again? Call for a replacement.

Have your year, make, model and engine ready, and tell us where the vehicle is sitting. D&J Towing has served Evergreen, the Colorado foothills and the Denver metro since 1984, and dispatch answers day and night, holidays included.

Battery and roadside dispatch, 24/7
(303) 674-0198 Tap to call