Marine Battery Load Testing
$95/hr
"A battery that reads 12.6V can still fail under load. Know before you go."
What's Included
- ✓Load test all house and start batteries
- ✓Check resting voltage and specific gravity where applicable
- ✓Inspect terminal connections for corrosion
- ✓Check battery hold-downs and ventilation
- ✓Inspect battery charger/shore power converter output
- ✓Document battery age, type, CCA rating, and test result
Why It Matters
Voltage readings lie. A sulfated battery can read a normal 12.6V at rest but collapse instantly when the starter motor demands 150+ amps. Dead batteries strand boats at the worst times—and worst places. You can't predict when a weak battery will fail, and a starter that won't turn over in an emergency is a serious problem.
San Diego's heat accelerates battery degradation. Even "new" batteries fail in 2–3 years when installed in a hot engine room. A load test reveals the truth: a battery that passes is good; one that drops below 9.6V under load is failing and should be replaced before you rely on it.
How Mark Does It
- 1.Record resting voltage for each battery
- 2.Apply calibrated load test
- 3.Measure voltage under load (good = stays above 9.6V at 15s)
- 4.Check for sulfation signs
- 5.Inspect all terminals—clean and apply anti-corrosion spray
- 6.Test shore power charger output voltage
- 7.Recommend replacement if test fails
Pricing
Battery Load Test: $95/hr (typically 1–1.5 hrs for 2–3 batteries)
Terminal Cleaning & Anti-corrosion: Included in inspection
Battery replacement: parts + $95/hr labor. Charger diagnostics and repair billed separately.
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Ready to Test Your Batteries?
Schedule a load test today. Don't let a weak battery ruin your next outing.
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