Whether you’re hauling across the country or idling at a job site, your truck’s battery system plays a crucial role in powering everything from cold starts to sleeper cab electronics. But with great power comes the need for proper care—and safety.

Here’s your essential guide to maintaining and protecting commercial truck batteries, keeping your rig rolling and your crew safe.

⚠️ Safety First: Respect the Power

Heavy-duty truck batteries contain sulfuric acid and produce hydrogen gas—both hazardous if handled improperly. Here are key precautions every technician and fleet operator should follow:

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