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description: Decoding JIS and DIN battery model numbers — what 145G51, 190H52, 58827 and 60038 mean and how the numbering systems work. type: article date_published: 2026-08-30 date_modified: 2026-08-31 faq: - q: What does the N in N150 mean? a: "N" is a JIS battery size class for larger heavy-duty batteries. N150 and N200 are widely used JIS heavy-duty truck battery designations. The number broadly indicates size, but the underlying JIS type number (like 145G51 or 190H52) is the precise identifier. - q: What does 145G51 mean in a JIS battery number? a: JIS type numbers encode dimensions, terminal layout and performance class — 145G51 means the 145-class size, G terminal, 51 case. The leading digits relate to size and performance; the full type number is the authoritative identifier. - q: What does DIN88 or DIN100 mean? a: DIN88 and DIN100 are common European shorthand for DIN-standard heavy-duty batteries, roughly tied to capacity class. The precise identifier is the full DIN/EN type number such as 58827 or 60038. - q: Why are there two numbers for the same battery? a: Manufacturers list both a market shorthand (like "N150" or "DIN88") and a formal type number (like 145G51 or 58827). The formal type number is what actually defines the physical and electrical specification. - q: How do I make sure I order the right battery? a: Read the full type number and dimensions (e.g. 190H52 = 520×278×220 mm) from your existing battery or manual, and confirm voltage, CCA, terminal type and polarity. The type number — not the shorthand — is the exact specification.

Decoding JIS & DIN Battery Model Numbers

TL;DR — Battery model numbers look cryptic, but they encode real information. JIS heavy-duty batteries use type numbers like 145G51 (sold as "N150") and 190H52 ("N200"); DIN batteries use numbers like 58827 ("DIN88") and 60038 ("DIN100"). The full type number is the authoritative spec — the shorthand is just a convenient name.

Key Takeaways

  1. The "N" name is a class, not a spec — N150 and N200 are size classes; only the type numbers 145G51 and 190H52 define exact dimensions, terminal layout and performance class.
  2. Same shorthand can hide different terminals — the trailing letter-number in 145G51/190H52 sets the terminal configuration, so two batteries sold under one "N" name can differ in terminal position or case height.
  3. DIN88/DIN100 are capacity classes, not exact identifiers — 88Ah and 100Ah are shorthand; the 58827 (88Ah/800A EN) and 60038 (100Ah/870A EN) type numbers are the real spec.
  4. Put the type number on the order, not the shorthand — order 145G51 or 58827, never just "N150" or "DIN88", or you risk the wrong terminal layout arriving.
  5. The size gap hides in the type number — 190H52 at 520×278×220mm is clearly larger than 145G51 at 508×222×212mm; the shorthand "N150/N200" gives you no way to see that.

JIS: The "N" Shorthand vs the Type Number

In JIS markets, heavy-duty truck batteries are often sold by a short "N" name:

Market shorthand JIS type number Capacity CCA
N150 145G51 135 Ah 900 A
N200 190H52 200 Ah 1100 A

The "N" name is a broad size class. The type number (145G51, 190H52) is the precise identifier — it defines the exact dimensions, terminal layout and performance class.

What the JIS Number Actually Encodes

A JIS type number such as 145G51 is not random. The leading digits track the physical size and performance class (larger numbers generally mean larger, higher-capacity batteries), while the trailing letter-and-number combination identifies the terminal configuration and case layout. The point for a buyer is practical: two batteries with the same shorthand name can still differ in terminal position or case height, which is why the full type number — not the "N" name — is what should go on a purchase order.

DIN: The "DIN88" Shorthand vs the Type Number

European heavy-duty batteries follow the same pattern:

Market shorthand DIN type number Capacity EN rating
DIN88 58827 88 Ah 800 A EN
DIN100 60038 100 Ah 870 A EN

Why the Type Number Matters

The type number encodes the physical and electrical specification. Two batteries that look similar in a shorthand name may have different dimensions or terminal layouts. When ordering or specifying:

  1. Read the full type number from the existing battery label
  2. Confirm dimensions (the N200 is physically larger than the N150)
  3. Confirm voltage, CCA, terminal type and polarity

The leading digits in a JIS type number are an index, not a spec. Divide to expose the miss: 135 Ah ÷ 145 = 0.93 (so 145G51 carries ~7% less than its number implies), while 200 Ah ÷ 190 = 1.05 (190H52 carries ~5% more). The error is nearly equal in size — 10 Ah — but points in opposite directions (145 overstates, 190 understates), so there is no fixed offset to add or subtract. DIN runs the opposite game: DIN88 = 88 Ah and DIN100 = 100 Ah, so capacity is readable straight off the shorthand, while the type numbers 58827 and 60038 encode nothing readable at all. The practical rule: treat a JIS leading number as a rough size index (accurate only to about ±7%), and read DIN capacity from the "DINxx" name, never the type number.

DINWEYS Model Reference

Model Standard Type number Capacity CCA Dimensions (mm)
145G51 JIS N150 135 Ah 900 A 508×222×212
190H52 JIS N200 200 Ah 1100 A 520×278×220
58827 DIN/EN DIN88 88 Ah 800 A EN 353×175×190
60038 DIN/EN DIN100 100 Ah 870 A EN 393×175×190

For the full comparison within each standard, see JIS N150 vs N200 and DIN88 vs DIN100.

References

  1. Battery Council International — lead battery technology
  2. SAE J537 (cold cranking amp test standard)

Find the Right Battery

Need a specific model or datasheet? Browse the DINWEYS product range (JIS heavy-duty batteries) or contact us for a quote.

DINWEYS OEM Factory — Truck & Heavy-Duty Starting Batteries This guide is published by DINWEYS, the truck-battery brand of Chengguang Energy (founded 2002). Browse the full product range, request a datasheet, or discuss OEM / private-label programs.