Professional Battery Testing (Battery replacement) & Electrical System Service in Denver, CO
Avoid Breakdowns. Ensure Reliable Starts. Trust NavAuto1 Group.
When car batteries (Batteries Service) fail, they often do so without any prior warning—leaving drivers stranded at work, home, or on the side of the road. At NavAuto1 Group, we offer comprehensive battery testing and electrical diagnostics to help you stay ahead of failure and keep your vehicle running with confidence.
Our ASE-certified technicians use dealer-level diagnostic equipment to test your battery’s state of health, cranking voltage, reserve capacity, and alternator performance. Whether you’re experiencing slow starts or just want to prevent issues before they arise, a quick visit to NavAuto1 Group can give you peace of mind in minutes.
Why and When Should You Get Your Battery Tested?
Routine Testing
Battery health deteriorates over time—especially in Colorado’s extreme hot and cold temperatures. We recommend testing your car battery:
- Every 12 months after year two
- Before long road trips
- Before winter and summer seasons
- If your vehicle has been parked for extended periods (working from home, seasonal use, etc.)
Warning Signs Your Battery May Be Failing
- Engine cranks slowly or takes longer to start
- Clicking noise or no sound when turning the key
- Dashboard battery light is illuminated
- Corrosion on battery terminals
- Electrical malfunctions (radio resets, dim lights, etc.)
- Battery age: 3+ years old
Even if your car starts, it doesn’t mean your battery is healthy. Our testing process evaluates the internal capacity of the battery—not just its voltage—so we can tell whether it’s about to fail even before symptoms begin.
European Vehicle Batteries: One Car, Two Batteries?
If you drive a European or luxury vehicle—such as a BMW, Mercedes-Benz, Audi, Jaguar, Land Rover, or Bentley your vehicle may be equipped with two separate batteries:
- Starter Battery – for engine ignition
- Auxiliary Battery – for advanced electrical systems: navigation, HVAC, infotainment, drive-assist, and more
These dual-battery systems are sensitive, and failure of either battery can cause:
- Malfunctioning electronics
- No-start conditions
- Check engine lights and electrical system warnings
At NavAuto1 Group, we specialize in high-end European diagnostics. If you’re unsure whether your car has a dual-battery setup, just call us with your VIN and we’ll confirm your system and battery locations at no charge.
What Our Battery Service Includes:
- Complete battery test (CCA, voltage, reserve capacity, load test)
- Alternator charging system test
- Starter draw test
- Parasitic drain inspection (if needed)
- Visual inspection for corrosion or terminal wear
- Battery replacement with top-tier options
- Professional installation and programming (for intelligent battery sensors)
- Battery registration for vehicles that require it (BMW, Mini, Audi, etc.)
Pro Tips for Extending Battery Life
- Install a battery tender: Especially useful if your car sits idle for extended periods. It prevents battery drain and overcharging.
- Drive regularly: Short or infrequent trips don’t allow the alternator to recharge your battery properly.
- Inspect terminals: Clean off corrosion and apply dielectric grease as needed to ensure strong electrical contact.
- Avoid power drain: Turn off headlights, interior lights, and accessories when the engine is off.
Why NavAuto1 Group is Denver’s Go-To Shop for Battery Service
- ASE Master Technicians
- Dealer-level tools for European vehicles
- Fast and accurate battery and system testing
- Certified battery installation (including AGM & Start-Stop systems)
- We handle everything from a Prius to a Porsche
Our facility has serviced over 24,000 vehicles in the last 4 years—many of which arrived with intermittent no-start issues that were quickly resolved with proper battery diagnostics and replacement.
Stop Searching “Battery Testing Near Me” – Visit NavAuto1 Group
Located in Denver, CO, we’re your trusted partner for all battery, electrical, and charging system needs. Whether it’s a dead battery, electrical warning, or you just want peace of mind before winter, visit NavAuto1 Group for a free battery test with any service.
Need help now? Call us or book an appointment online. We’ll keep your car starting strong—every time.
Need Batteries Service in Denver?
Preventative Maintenance, Diagnostic Services and Auto Repairs in Denver, US
NavAuto1 Group Auto Repair has all of the resources to meet your current and future needs for Battery Testing (Batteries Service) & Electrical System Service and more.
Car Battery Information & Service Overview
Your car’s battery is the heart of its electrical system — powering everything from the ignition and lights to onboard computers and accessories. A weak or failing battery can leave you stranded, cause slow starts, and trigger warning lights.
Battery Life Expectancy
Typical lifespan: 2–5 years depending on driving habits, climate, and battery type
Cold weather shortens battery life; hot climates accelerate internal degradation
Short trips or infrequent driving can drain batteries faster
- Our Work is Guaranteed
- Save Time and Money
- 3 Year Warranty
- Free Shuttle Service
- Experience and Expertise
- Friendly Environment
Contact Info
Phone: (303) 915-0191
Email: info@na1g.com
Opening Hours
Mon – Fri: 8:00 AM – 5:30 PM
Sat – Sun: Closed
Service Centre
Denver, CO 80216
Looking For a Place you can Trust to Keep your Vehicles Rolling.
NavAuto1 Group.“Denver’s #1 A-to-Z Automotive Repair Center.”
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