Semi Truck Jump Start Service in West Palm Beach, FL

• 12V and 24V jump start for all semi truck and commercial vehicle configurations
• Battery load testing and state-of-health analysis
• Battery replacement on-site (individual cells or full bank)
• Battery cable and terminal repair (corroded, loose, damaged)
• Parasitic draw testing (finding what's draining your batteries overnight)
• Alternator output testing and replacement
• Starter motor diagnosis and replacement
• Battery disconnect switch repair
• APU battery system diagnosis
• Battery box and mounting hardware repair

Dead truck? Call 561-475-8052 — we'll get you started fast.

A lot of drivers call for a jump start thinking the problem begins and ends with a dead battery. Sometimes it does — but often the dead battery is a symptom, not the cause:

• If batteries are simply old and worn out — Jumping gets you started today, but the batteries are on borrowed time. They'll die again — probably at the worst possible moment. We test battery health and recommend replacement when the batteries are at end-of-life.
• If the alternator is undercharging — Jumping starts the truck, but the alternator isn't putting enough charge back. You'll make it 50 miles or 200 miles before the batteries run down again. We test alternator output under load before declaring the job done.
• If there's a parasitic draw — The truck starts and runs great after a jump, but every time it sits overnight, the batteries are dead again. The draw needs to be found and eliminated. We measure and trace parasitic draws on-site.
• If corrosion is the problem — Jumping through corroded terminals works sometimes — enough current leaks through the corrosion to spin the starter. But the high resistance means the alternator can't fully charge the batteries through the same corroded connection. We clean terminals and cables as part of every jump start service.

Our approach: jump the truck, then diagnose why it needed a jump. The $100 diagnostic fee that finds a $5 corroded ground wire saves you from buying $800 in new batteries that weren't the problem.

These are the jump start calls we get every week in South Florida:

• "Truck sat over the weekend and won't start Monday morning" — Usually parasitic draw or end-of-life batteries. The batteries were marginal but could restart a warm engine after an overnight sit. Two cold nights (by Florida standards) and 48 hours of parasitic draw pushed them over the edge.
• "Jumped it yesterday and it died again today" — The batteries recharged enough to start the truck once, but the underlying problem (weak battery, bad alternator, or parasitic draw) means they can't sustain a second start. This truck needs diagnosis, not another jump.
• "Driver left the lights on / sleeper fan on / APU running" — Accidental battery drain from a known cause. We jump it, test the batteries to make sure they weren't damaged by deep discharge, and send the driver on their way. Deep discharge can permanently damage batteries, so testing is important even when the cause is known.
• "New batteries and it still won't start" — Someone already replaced the batteries but didn't find the actual problem — a bad alternator, a parasitic draw, or a starter that draws excessive current. New batteries mask the problem temporarily until they too are drained. We find the root cause.
• "Truck starts fine during the day but dead every morning" — Classic parasitic draw pattern. Something is draining the batteries overnight. Could be a cab heater timer, an aftermarket GPS tracker, a dashcam wired to constant power, or a relay that sticks closed. We find it and fix it.