AA LiFePO₄ LN4 is a high-capacity lithium iron phosphate automotive battery designed to replace conventional LN4 lead-acid batteries, commonly used in large sedans, SUVs, and premium European vehicles. It delivers strong cranking performance, stable voltage, and longer service life compared to traditional lead-acid batteries.

Size & Compatibility

Battery Size: DIN / EN LN4
Physical Size (Approx.): 315 × 175 × 190 mm

Replaces Lead-Acid Sizes:

• DIN / EN: LN4

• Common Size Reference: DIN80, DIN85

• Typical Lead-Acid Capacity: ~80–85Ah (reference only)

Typical Vehicles:
BMW 5 Series / X3 / X5
Mercedes-Benz E-Class / GLC / GLE
Volkswagen Touareg / Arteon
Audi A6 / Q5
Other European vehicles using LN4 size

🔎 Battery Size Reference (IMPORTANT)

LN4 is a European DIN battery size standard, commonly referred to as DIN80 or DIN85.
Battery size refers to physical dimensions and terminal layout. LN4 is larger than LN3 and is not interchangeable with LN2, LN3, Q85, or NS60 batteries.

Warranty

3 Years or 60,000 km (whichever comes first)

Comparison – LiFePO₄ vs Lead-Acid Battery

✅ Advantages over Lead-Acid

• Significantly lighter than equivalent lead-acid batteries

• Strong and consistent engine cranking

• Stable voltage for modern vehicle electronics

• No acid leakage or corrosion

• No sulfation during storage

• Longer usable service life

⚠ Considerations

• Higher upfront cost compared to lead-acid batteries

• Correct battery size and terminal layout must be confirmed before installation

Why Choose AA LiFePO₄ LN4

• Safe and stable LiFePO₄ chemistry

• Designed for high-capacity automotive applications

• Maintenance-free operation

• Reduced long-term replacement frequency

• Backed by extended warranty coverage

Q&A (SEO-Friendly)

Q: Can AA LiFePO₄ LN4 replace my original LN4 / DIN80 / DIN85 battery?
Yes. It is designed as a direct physical replacement for LN4-size lead-acid batteries, provided the battery tray and terminal layout match.

Q: Is LN4 larger than LN3?
Yes. LN4 is physically longer and has higher capacity than LN3. They are not interchangeable.

Q: Can LN4 replace Q85 or NS60?
No. Q85 and NS60 belong to different battery size classes and should not be replaced with LN4.

Q: Is LN4 suitable for modern European vehicles?
Yes. LN4 is commonly used in European vehicles with higher electrical demand.

Important Note

Battery size refers to physical dimensions and terminal layout, not Ah rating. Please confirm your original battery size before ordering.