An AGM H5 battery is a car battery that combines an Absorbed Glass Mat (AGM) design with the H5 (also called Group 47/LN2) case size. You’ll see many H5 AGM listings described as 12V, maintenance-free and often labeled for start-stop systems, with typical specs around 60Ah, ~650–680 CCA, and ~100–105 RC (actual ratings vary by model).

• AGM benefits: Sealed, spill-resistant construction that can handle vibration and frequent starts.
• H5 size: A standardized footprint and terminal layout for vehicles that specify H5.
• Use case: Common in many sedans and compact SUVs, especially with start-stop features.

To confirm fit, compare the size code (H5/Group 47/LN2) and electrical ratings to your owner’s manual or the vehicle fit information on the product page.

H5 is a size code that identifies a car battery’s physical footprint and post layout. It helps ensure the battery fits your vehicle’s tray, lines up with the terminals, and works with the hold-downs. You’ll often see the same size also called Group 47 or LN2 in different standards.

• H5 covers: Case dimensions, terminal position, and fitment style.
• H5 doesn’t cover: Chemistry (AGM, standard lead-acid, or lithium) or performance ratings.

When shopping, use H5 to match fit, then compare performance specs like CCA, Amp Hours (Ah), and Reserve Capacity (RC) to what your vehicle calls for. Checking your owner’s manual or the vehicle selector on the product page can help avoid a misfit.

The H5 battery size is commonly cross-listed under several standards. If you see these labels, they typically refer to the same footprint used by vehicles that require H5:

• BCI Group 47 (often shown as just “47”)
• H5 (EN/ETN naming)
• LN2 or L2 (DIN/EN naming)

While these codes point to the same general size, it’s still a good idea to confirm details like terminal type and polarity (e.g., top-post) and any hold-down requirements noted in the product details. For best results, verify compatibility using your owner’s manual or the vehicle fit information provided on the product page.

H5 only tells you the size and fitment, not the chemistry. H5 batteries are available as AGM, standard lead-acid (flooded), and even some lithium replacements. The chemistry is usually called out in the title or description (e.g., “AGM”).

• AGM H5: Often labeled maintenance-free and designed to support start-stop systems.
• Flooded H5: Traditional lead-acid construction in the same size.
• Lithium H5 replacements: Offered in some cases, but compatibility varies by vehicle.

Choose the chemistry that aligns with your vehicle’s requirements. Many start-stop vehicles specify AGM from the factory. When in doubt, check your owner’s manual and the product details before replacing your battery.

These common specs help you compare H5 (Group 47/LN2) batteries beyond just size:

• CCA (Cold Cranking Amps): Indicates starting power, especially in cold conditions. Higher CCA can help with cold starts.
• Ah (Amp Hours): Reflects how much energy the battery can store. It’s useful for vehicles with accessory loads.
• RC (Reserve Capacity): Shows how long the battery can supply power if the charging system isn’t running.

On H5 listings, you’ll often see specs around ~650–680 CCA, ~60Ah, and ~100–105 RC, but values vary by model. Aim to match or exceed your vehicle’s recommendations, and review the product details to pick the balance of starting power and capacity that fits your needs.