A dead or failing battery can leave you stranded. Our mobile battery service includes load testing to identify weak batteries before they fail, fast replacement with commercial-grade batteries, and full charging system diagnostics.
Why Battery Health Matters
The battery starts the engine and supports electrical loads. Weak batteries cause slow cranking, strand you unexpectedly, and can hide alternator or charging problems.
Common Battery Problems
Deep discharge, sulfation, terminal corrosion, loose connections, and end-of-life failure are typical. Extreme heat and cold accelerate wear.
Signs You Need Service
Clicking at start, slow cranking, dim lights, frequent jump-starts, or repeated low voltage mean testing is overdue.
Battery and Charging Service
We load-test batteries, verify charging system output, clean terminals, and install the correct commercial-grade replacement when needed.
Why Choose KM Truck & Trailer
Fast turnaround, accurate testing, and 24/7 roadside battery and charging help across South Carolina.
We also inspect your alternator and voltage regulator to ensure your charging system is functioning properly. A well-maintained electrical system prevents unexpected breakdowns and extends the life of your batteries.
What's Included
Why Choose KM Truck & Trailer?
Trusted & Professional
Experienced technicians delivering reliable repairs you can count on.
Flexible Payment
Convenient payment choices designed to fit your budget.
Satisfaction Guarantee
Quality service backed by our commitment to customer satisfaction.
Friendly Support
A helpful team ready to assist you every step of the way.
Frequently Asked Questions
Trusted by Truck Drivers Across SC
Based on 100+ verified Google reviews
"They are so amazing people, well spoken, on time and quick like ambulance. Fair price. They took 37 minutes to fix my brake leaks on my semi truck."
"I've been in trucking business for 9 years. I've never been to any shop like this. They're honest, fast, the price is very reasonable. Highly recommend!"
"This is the best diesel repair shop in South Carolina on I-77 and I-26 area. They are very truthful and very honest people. Highly recommend."