Mobile Battery and Alternator Testing and Replacement

Illustration of mobile battery and alternator service in a Louisiana mobile-service setting

Mobile battery and alternator service is testing your batteries and charging system at your location and replacing the failed part. Emergency Mobility Services tests battery condition and alternator voltage and amp output, then replaces batteries and alternators on site and at the roadside.

Call (318) 676-2838Contact us

Available 24/7 ยท Ponchatoula, LA and surrounding areas

How mobile battery and alternator service works at your location

Illustration of how mobile battery and alternator service works at your location in a Louisiana mobile-service setting

A vehicle that will not start is not always a bad battery. A failing alternator drains new batteries, so we test the charging system along with the batteries.

Diesel trucks often carry several batteries, so we test each one before replacing any.

What the visit covers

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  • Battery testing

    Checking each battery for condition and charge.

  • Alternator output test

    We test voltage and amp output to confirm the alternator is working.

  • Replacement

    Replacing the battery or alternator when testing shows a failure.

Signs of battery or charging trouble

  • Slow cranking or a click with no start.
  • Dim lights or a battery warning lamp on the dash.
  • Electronics reset or behave oddly.
  • Batteries keep going flat after a jump start.
  • Corrosion or swelling on a battery.

Before you call

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Good to know

  • Battery sizes and types vary, so replacement depends on having the right one for your vehicle.
  • A starter or wiring fault can look like a battery fault. Testing separates them.

What affects the quote

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  • Number and type of batteries.

  • Whether the alternator also needs replacement.

  • Parts availability.

  • Location and timing.

Call (318) 676-2838 for a quote on your job.

Questions about battery and alternator

Can you tell if it is the battery or the alternator?

Yes. We test battery condition and alternator voltage and amp output.

Will a jump start fix my truck?

It may start the engine, but if the charging system has failed the batteries will go flat again. Testing finds the cause.

Can you replace the battery on site?

Yes, we replace batteries on site and at the roadside, depending on having the right battery for your vehicle.

Related pages

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Need a mechanic at your vehicle?

Call and tell us where you are and what happened. We take calls 24/7.

Call (318) 676-2838
Call (318) 676-2838