description: China GB battery codes vs JIS — how Chinese national standard 6-QW model numbers map to JIS N150/N200, and what buyers importing from China need to know. type: article date_published: 2026-08-30 date_modified: 2026-08-30 faq: - q: What is a 6-QW battery number? a: The Chinese national standard (GB) uses codes like "6-QW-150". "6" means 6 cells (12V), "Q" means starting (automotive), "W" means maintenance-free, and the number is the nominal 20-hour capacity in Ah. - q: What Chinese code corresponds to JIS N150? a: A 6-QW-150 (about 150Ah, around 900 CCA) corresponds to the JIS N150 class. A 6-QW-200 (about 200Ah) corresponds to the JIS N200. The dimensions are close but should be verified against your tray. - q: Is a Chinese GB battery the same as a JIS battery? a: Not automatically. The GB code references capacity and construction; the JIS type number (145G51/190H52) defines exact dimensions and terminals. They are broadly equivalent in capacity class but should be cross-checked before substitution. - q: What does the "W" in 6-QW mean? a: "W" indicates a maintenance-free (sealed) battery. "6-QA" indicates a dry-charged conventional battery. This is a useful cue when sourcing from Chinese suppliers. - q: Do I import JIS or GB batteries for my market? a: For JIS markets (Southeast Asia, Middle East, Africa), specify JIS N150/N200 to match local vehicles and terminal conventions. GB codes are the domestic Chinese reference; many Chinese exporters list both.

China GB Battery Codes vs JIS: What Importers Need to Know¶

TL;DR — Chinese battery manufacturers often list both a GB (national standard) code and a JIS model. A "6-QW-150" broadly corresponds to the JIS N150 class, and "6-QW-200" to the N200. The GB code tells you capacity and construction; the JIS type number defines exact dimensions and terminals — cross-check before substituting.

Decoding a Chinese GB Code¶

The Chinese national standard battery code is highly transparent. Take 6-QW-150:

Position	Meaning	Value
6	Number of cells (6 × 2V)	12V battery
Q	Function code — Q = starting (automotive)	Starting battery
W	Construction — W = maintenance-free	Sealed / maintenance-free
150	Nominal 20-hour capacity	150 Ah

A "6-QA" code means a dry-charged conventional (non-sealed) battery — the "A" signalling a serviceable design rather than maintenance-free.

GB ↔ JIS Cross-Reference¶

Chinese producers serving the heavy-truck export market commonly pair the GB code with the JIS model it replaces:

GB code	Capacity	Typical CCA	Corresponding JIS class	DINWEY equivalent
6-QW-150	~150 Ah	~900 A	N150	145G51 (N150)
6-QW-200	~200 Ah	~1200 A	N200	190H52 (N200)

Verify dimensions and terminals

GB and JIS codes are broadly equivalent in capacity class, but they are not the same specification. The JIS type number (145G51, 190H52) defines exact dimensions and terminal layout. Always cross-check the physical footprint, terminal type and polarity before substituting one for the other.

Why This Matters for Importers¶

Many JIS-market buyers source from Chinese factories, where batteries are quoted in GB codes alongside JIS models. Understanding the mapping prevents three common mistakes:

Ordering the wrong terminal orientation — GB and JIS terminals can differ
Assuming identical dimensions — the footprints are close but not always equal
Confusing maintenance-free (W) and serviceable (A) designs — they have different price points and maintenance needs

The JIS Market Reality¶

Across Southeast Asia, the Middle East and Africa, the JIS N-series is the dominant heavy-truck standard. Furukawa (Japan), along with Chinese producers, all supply N100/N120/N150/N200 as the core commercial range — confirming that JIS is the safe specification for these markets.

References¶

Find the Right Battery¶

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

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