If you’re asking whether the 2005 Altima battery size is different for hybrid models, the short answer is: there was no 2005 Altima hybrid. Toyota didn’t release a hybrid version of the Altima Nissan did. And Nissan didn’t offer a hybrid Altima until the 2019 model year. So if you’re looking at a 2005 Altima, it’s definitely not a hybrid, and it uses the same conventional 12-volt lead-acid battery as all other 2005 Altimas sold in the U.S.

Why does this question come up so often?

People mix up brands and model years especially when searching online for battery replacement info. You might see “2005 Altima hybrid” pop up in forums or auto parts sites due to typos, mislabeled listings, or confusion with the 2019+ Nissan Altima Hybrid, or even the Toyota Camry Hybrid (which launched in 2006). That confusion leads to real problems: ordering the wrong battery group size, buying an incompatible AGM or lithium unit, or overlooking that your car doesn’t have a high-voltage traction battery at all.

What battery does a 2005 Altima actually use?

All 2005 Nissan Altimas whether 2.5L four-cylinder or 3.5L V6 use a standard 12-volt flooded lead-acid battery in Group Size 24F. It’s rated around 650–700 CCA (cold cranking amps) and fits in the driver’s side front corner of the engine bay. This is the same spec used across most 2002–2006 Altimas. You’ll find it listed in the owner’s manual and confirmed in the professional mechanic guide to 2005 Altima battery specs.

What about hybrid battery confusion?

Hybrid vehicles like the 2006 Toyota Camry Hybrid or 2010 Honda Insight use two batteries: a small 12-volt auxiliary battery (often Group Size 55 or 151R) and a large high-voltage traction battery (usually nickel-metal hydride or lithium-ion, 144–288 volts). But again none of that applies to the 2005 Altima. If someone tells you your 2005 Altima has a hybrid battery, they’re mistaken. No diagnostics, no scan tool reading, and no physical inspection will show a second battery pack under the rear seat or trunk floor.

Common mistakes people make

  • Ordering a “hybrid battery” online for a 2005 Altima then realizing it’s a $1,200 lithium module meant for a Prius.
  • Assuming “AGM battery required” because newer Altimas use them 2005 models don’t need or support AGM unless modified.
  • Using battery fitment tools that auto-suggest hybrid options based on vague year/make input, without confirming trim or drivetrain.
  • Skipping the VIN lookup step your VIN confirms exact specs faster than guessing by year alone.

How to confirm your battery size the right way

The safest way is to check the label on your current battery it’ll list Group Size (e.g., “24F”), CCA, and reserve capacity. If the label is worn off, open the hood and measure: a Group 24F is roughly 10.25″ L × 6.81″ W × 8.88″ H. You can also look up your VIN in Nissan’s parts catalog or use the step-by-step guide to finding the correct battery group size it walks through decoding service manuals and OEM part numbers.

What if you think you have a hybrid Altima?

Double-check the badge, owner’s manual, and window sticker. A true hybrid will have “Hybrid” badging, an electric-only driving mode, and a dashboard display showing power flow between engine and motor. The 2005 Altima has none of those. If you’re still unsure, take a photo of your VIN plate and compare it to Nissan’s 2005 Altima production records or consult the repair manuals and replacement procedures that list every factory option for that model year.

Next step: Grab a flashlight, open your hood, and look at the battery label. If it says “24F,” you’re good. If it’s faded or missing, measure it or pull your VIN and cross-check. Don’t rely on year-only searches trim, engine, and region matter just as much.