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Varta EFB Car Battery - N85

Varta EFB Car Battery - N85

The Varta Blue Dynamic EFB battery is engineered for vehicles with advanced Start-Stop functionali...

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EFB Battery fits TATA ARIA 2.2D 2010 on Stop Start Varta 249H EFB 800A 85Ah New

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eBayEFB Battery fits TATA ARIA 2.2D 2010 on Stop Start Varta 249H EFB 800A 85Ah New
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Blueperry agriculture (UK)Varta Battery 12V 85Ah 800A N85 Dynamic Efb 585501080
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Product Information

Full details

The Varta Blue Dynamic EFB battery is designed for owners of modern vehicles equipped with entry-to-mid-level Start-Stop technology who require consistent, high-performance power delivery. Its primary benefit is the enhanced cyclic stability and cold-cranking capacity that sustains frequent engine restarts, though users must ensure their vehicle specifically requires EFB technology, as standard lead-acid batteries are not suitable replacements for Start-Stop systems.

All features

Model Part NumberN85
BrandVarta

Extended Product Information

FAQs

Can I use this battery in a car without Start-Stop?

While it will technically function, it is optimized for Start-Stop systems; it is generally more cost-effective to use a standard Varta battery for vehicles without this technology.

Do I need a special charger for this battery?

Yes, use a modern, microprocessor-controlled battery charger that supports EFB/AGM battery profiles to avoid overcharging.

What are the dimensions of the N85?

The battery measures 306mm in length, 173mm in width, and 225mm in height.

How often should I check the water levels?

The Varta Blue Dynamic EFB is a maintenance-free battery and does not require or allow for the addition of water.

Where is the positive terminal located?

The positive terminal is located on the front right side of the battery casing.

What is the warranty period?

Warranty terms vary by retailer; please consult your original point of purchase for specific coverage details.

Troubleshooting

Engine cranks slowly after installation

Check that battery terminals are clean and tightened securely; if the issue persists, the battery may need a full charge with a smart charger.

Start-Stop system not functioning

Ensure the Battery Management System (BMS) was reset after installation, as the vehicle computer needs to be taught that a new battery is present.

Pros and Cons

Pros

  • Optimized for advanced Start-Stop systems
  • High 800A cold-cranking capability
  • Superior cyclic stability
  • Maintenance-free design
  • Reliable cold-weather performance

Cons

  • Not suitable for vehicles without Start-Stop systems
  • Heavier than standard lead-acid batteries
  • Requires specific charging profiles if using an external charger

Setup, Compatibility & Care

Before installation, verify that the N85 model matches the group size and polarity (positive pole on the front right) required by your vehicle's manual. Ensure the engine is off and the electrical system is inactive before removing the old battery. Clean the cable clamps of any corrosion using a wire brush before securing them to the new battery terminals to ensure a solid electrical connection. Once installed, have your vehicle's Battery Management System (BMS) reset by a professional to ensure the alternator charges the new battery according to its EFB chemistry requirements. Keep the top surface of the battery clean and dry to prevent terminal oxidation and check that the mounting brackets are tightened to prevent vibration-induced damage.

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