{"id":295,"date":"2026-09-21T05:30:32","date_gmt":"2026-09-21T05:30:32","guid":{"rendered":"https:\/\/chengguangenergy.com\/"},"modified":"2026-09-21T05:30:32","modified_gmt":"2026-09-21T05:30:32","slug":"jis-battery-standard","status":"publish","type":"post","link":"https:\/\/chengguangenergy.com\/ar\/jis-battery-standard\/","title":{"rendered":"JIS Battery Standard: JIS Battery Sizes, Codes, and Model Guide"},"content":{"rendered":"

The JIS (Japanese Industrial Standard)<\/strong> battery standard, defined by JIS D 5301<\/strong>, is the dominant lead-acid battery specification across Asia, Africa, the Middle East, and Oceania. It is the naming and dimensional system behind the world’s highest-volume automotive battery sizes \u2014 including the 65D26, which powers millions of Japanese-brand sedans and SUVs worldwide.<\/p>\n

Chengguang Power Tech manufactures 7 JIS models<\/strong>, from the 45 Ah 55B24 to the 200 Ah 190H52. This page explains the JIS code system, the mounting hardware, and how to read a JIS model number.<\/p>\n

Key Takeaways<\/h2>\n
    \n
  • Code<\/strong> \u2014 JIS code = performance class + size class (65D26 = 65 class, D-series width, 26 length code).<\/li>\n
  • Mounting<\/strong> \u2014 B00 top-frame clamp + T1 posts \u2014 fundamentally different from DIN B13 bottom rail.<\/li>\n
  • Range<\/strong> \u2014 7 models from 55B24 (45 Ah) to 190H52 (200 Ah).<\/li>\n
  • CCA note<\/strong> \u2014 JIS CCA (D 5301, \u221215 \u00b0C) uses a different test point from SAE (\u221218 \u00b0C), so the two numbers are not directly convertible.<\/li>\n<\/ul>\n

    Reading a JIS Model Number<\/h2>\n

    A JIS code like 65D26<\/strong> encodes three pieces of information:<\/p>\n\n\n\n\n\n\n\n
    Position<\/th>\nMeaning<\/th>\nExample (65D26)<\/th>\n<\/tr>\n<\/thead>\n
    1\u20132 (numeric)<\/td>\nPerformance class \u2014 capacity\/CCA tier (higher = more power)<\/td>\n65<\/td>\n<\/tr>\n
    3 (letter)<\/td>\nCase width class \u2014 B (narrow ~129 mm), D (wide ~173 mm), E (extra-wide ~176 mm), G\/H (heavy duty)<\/td>\nD<\/td>\n<\/tr>\n
    4\u20135 (numeric)<\/td>\nApproximate case length in centimetres<\/td>\n26 (\u2248260 mm)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    So 65D26<\/strong> = 65-class performance, D-series width, 26 cm length. 55B24<\/strong> = 55-class, B-series narrow frame, 24 cm length. 190H52<\/strong> = 190-class, H-series heavy-duty frame, 52 cm length.<\/p>\n

    The same physical case often carries multiple regional names. The 65D26 is sold as NS70<\/strong> in Southeast Asia\/Australia, N50<\/strong> in the Middle East\/Africa, and 55D26<\/strong> as an economy variant \u2014 all the same 260 \u00d7 173 mm footprint. Verify the Ah and CCA on the label; a name alone does not fix the electrical spec.<\/p>\n

    JIS Mounting Hardware<\/h2>\n

    JIS batteries use a distinctive mounting system that does not interchange with DIN or BCI:<\/p>\n\n\n\n\n\n\n\n\n\n
    Attribute<\/th>\nJIS Specification<\/th>\n<\/tr>\n<\/thead>\n
    Terminal<\/td>\nT1 post \u2014 small post (cars) or large post (heavy duty)<\/td>\n<\/tr>\n
    Hold-down<\/td>\nB00 (top frame clamp)<\/td>\n<\/tr>\n
    Polarity<\/td>\nType [0] \u2014 left negative (\u2212), right positive (+)<\/td>\n<\/tr>\n
    Standard document<\/td>\nJIS D 5301<\/td>\n<\/tr>\n
    Test reference<\/td>\nCCA at \u221215 \u00b0C (differs from SAE \u221218 \u00b0C)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    A JIS B00 hold-down is a metal frame clamped across the battery top \u2014 fundamentally different from the DIN B13 bottom-rail lip. When replacing a battery, confirm the tray uses a top-frame clamp before assuming a JIS unit will fit.<\/p>\n

    The Chengguang JIS Range: 7 Models<\/h2>\n

    | Model | Also Known As | Type | C20 (Ah) | CCA (SAE) | Dimensions (mm) | Terminal | Weight (kg) |
    \n|—|—|—:|—:|—|—|—:|
    \n| 55B24 | N45, N40 | SLI | 45 | 370 | 238 \u00d7 129 \u00d7 202\u2013227 | T1 small | 11\u201314 |
    \n| 55D23 | 75D23 | SLI | 60 | 500 | 232 \u00d7 173 \u00d7 202\u2013225 | T1 small | 13\u201316 |
    \n| 65D26 | 55D26, NS70, N50, N50Z | SLI | 55\u201370 | 450\u2013580 | 260 \u00d7 173 \u00d7 202\u2013225 | T1 small | 14\u201318 |
    \n| 95E41 | W105, N100 | SLI | 100 | 750 | 410 \u00d7 176 \u00d7 213\u2013233 | T1 small | 22\u201326 |
    \n| 105D31 | 95D31, 65D31, N90, N80, N70 | SLI | 90 | 650 | 306 \u00d7 173 \u00d7 202\u2013225 | T1 small | 19\u201323 |
    \n| 145G51 | N150 | Heavy Duty | 120\u2013135 | 800\u2013900 | 508 \u00d7 222 \u00d7 212\u2013240 | T1 large | 30\u201338 |
    \n| 190H52 | N200 | Heavy Duty | 200 | 1,100 | 521 \u00d7 278 \u00d7 220\u2013270 | T1 large | 45\u201355 |<\/p>\n

    Application Mapping<\/h3>\n\n\n\n\n\n\n\n\n\n\n
    Vehicle Type<\/th>\nRecommended JIS Models<\/th>\n<\/tr>\n<\/thead>\n
    Compact car \/ hatchback<\/td>\n55B24<\/td>\n<\/tr>\n
    Mid-size sedan<\/td>\n55D23, 65D26<\/td>\n<\/tr>\n
    Large sedan \/ SUV<\/td>\n65D26, 95E41, 105D31<\/td>\n<\/tr>\n
    Pickup \/ light truck<\/td>\n105D31<\/td>\n<\/tr>\n
    Medium truck \/ bus<\/td>\n145G51<\/td>\n<\/tr>\n
    Heavy truck \/ equipment<\/td>\n190H52<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Regional Demand<\/h3>\n\n\n\n\n\n\n\n\n
    Region<\/th>\nPrimary Standard<\/th>\nTop JIS Models<\/th>\n<\/tr>\n<\/thead>\n
    Southeast Asia<\/td>\nJIS<\/td>\n55B24, 55D23, 65D26<\/td>\n<\/tr>\n
    Africa<\/td>\nJIS + DIN<\/td>\n65D26, 95E41, 105D31<\/td>\n<\/tr>\n
    Middle East<\/td>\nJIS + DIN<\/td>\n65D26, 105D31<\/td>\n<\/tr>\n
    Australia \/ Oceania<\/td>\nJIS (AS)<\/td>\n65D26, 105D31<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Buying Considerations<\/h2>\n
      \n
    1. Width class first.<\/strong> B-series (129 mm) and D-series (173 mm) trays are not interchangeable. Measure the tray width \u2014 130 mm points to 55B24; 175 mm opens the D-series.<\/li>\n
    2. Performance tier maps to CCA.<\/strong> The leading digits are a power class, not a capacity guarantee. The 105D31\/95D31\/65D31 share one case but differ in Ah (90\/80\/65). Confirm the label rating.<\/li>\n
    3. Heavy duty is a different animal.<\/strong> 145G51 and 190H52 use thick Pb-Sb plates, deep-sump cases, and T1 large posts. They will not fit a passenger car tray (30\u201355 kg).<\/li>\n
    4. JIS CCA \u2260 SAE CCA.<\/strong> JIS D 5301 rates CCA at \u221215 \u00b0C versus SAE \u221218 \u00b0C \u2014 different test procedures with no universal percentage conversion. Chengguang spec sheets quote SAE J537 CCA to keep comparisons consistent.<\/li>\n<\/ol>\n

      Testing & Quality Control<\/h2>\n

      JIS batteries are tested to JIS D 5301 with a 100% gate on every unit:<\/p>\n\n\n\n\n\n\n\n\n\n
      Test<\/th>\nStandard<\/th>\nCoverage<\/th>\n<\/tr>\n<\/thead>\n
      CCA<\/td>\nSAE J537 at \u221218 \u00b0C (cross-referenced)<\/td>\n100%<\/td>\n<\/tr>\n
      Open-circuit voltage<\/td>\n>12.60 V after formation<\/td>\n100%<\/td>\n<\/tr>\n
      Visual \/ polarity \/ hold-down<\/td>\nJIS D 5301<\/td>\n100%<\/td>\n<\/tr>\n
      C20 capacity<\/td>\nIEC 60095-1<\/td>\nBatch<\/td>\n<\/tr>\n
      Vibration<\/td>\nJIS D 5301, 3g RMS \/ 8 h<\/td>\nBatch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      JIS Manufacturing Notes<\/h2>\n

      Chengguang’s JIS line splits by duty class, not just by case size:<\/p>\n\n\n\n\n\n\n
      Duty Class<\/th>\nGrid Alloy<\/th>\nPlate Design<\/th>\nModels<\/th>\n<\/tr>\n<\/thead>\n
      SLI (passenger)<\/td>\nPb-Ca (calcium)<\/td>\nThin plates, high surface area for CCA<\/td>\n55B24, 55D23, 65D26, 95E41, 105D31<\/td>\n<\/tr>\n
      Heavy duty (commercial)<\/td>\nPb-Sb (antimony)<\/td>\nThick plates, deep-sump case, high RC<\/td>\n145G51, 190H52<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Calcium grids cut self-discharge and water loss (the SLI requirement); antimony grids survive deep cycling and vibration (the truck\/bus requirement). The same 65D26 case can be built to 55, 65, or 70 Ah by varying plate count and paste density \u2014 which is why the label Ah, not the case name<\/strong>, is the purchase specification.<\/p>\n

      JIS Performance Classes Decoded<\/h2>\n

      The leading digits of a JIS code are a performance class \u2014 a rough capacity band, not an exact Ah. The size letter and final digits then fix the case:<\/p>\n\n\n\n\n\n\n\n\n
      Performance Class<\/th>\nTypical Capacity<\/th>\nExample Models<\/th>\nVehicle Class<\/th>\n<\/tr>\n<\/thead>\n
      50\u201355<\/td>\n45\u201360 Ah<\/td>\n55B24, 55D23<\/td>\nCompact cars<\/td>\n<\/tr>\n
      65\u201375<\/td>\n65\u201375 Ah<\/td>\n65D26, 75D23<\/td>\nMid-to-large sedans, SUVs<\/td>\n<\/tr>\n
      95\u2013105<\/td>\n90\u2013100 Ah<\/td>\n95E41, 105D31<\/td>\nLarge SUVs, pickups<\/td>\n<\/tr>\n
      145+<\/td>\n120+ Ah<\/td>\n145G51, 190H52<\/td>\nTrucks, buses, equipment<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      The width class letter<\/strong> is the first fitment decision: B-series (129 mm) for compact trays, D-series (173 mm) for the standard sedan\/SUV tray, and E\/G\/H-series (176\u2013278 mm) for large and heavy-duty cases.<\/p>\n

      CCA by Engine Class \u2014 JIS Model Fit<\/h2>\n\n\n\n\n\n\n\n\n\n
      Engine<\/th>\nTypical CCA (SAE)<\/th>\nJIS Model<\/th>\n<\/tr>\n<\/thead>\n
      4-cyl gasoline 1.3\u20132.0 L<\/td>\n370\u2013500<\/td>\n55B24, 55D23<\/td>\n<\/tr>\n
      V6 gasoline 2.5\u20133.5 L<\/td>\n500\u2013650<\/td>\n65D26, 105D31<\/td>\n<\/tr>\n
      V8 gasoline >4.0 L<\/td>\n650\u2013850<\/td>\n95E41, 105D31<\/td>\n<\/tr>\n
      4-cyl diesel 2.0\u20133.0 L<\/td>\n550\u2013750<\/td>\n65D26, 95E41<\/td>\n<\/tr>\n
      V6\/V8 diesel >3.0 L<\/td>\n750\u20131,100<\/td>\n145G51, 190H52<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Climate adjustment: add ~20% CCA for sustained \u221220 \u00b0C operation; subtract ~10% for markets that never freeze. A 65D26 in Siberia is not the same sizing decision as a 65D26 in Dubai.<\/p>\n

      JIS CCA Conversion<\/h2>\n

      JIS D 5301 rates CCA at \u221215 \u00b0C, while SAE uses \u221218 \u00b0C \u2014 so the same battery carries different numbers depending on the standard on the label:<\/p>\n\n\n\n\n\n\n\n\n\n
      Standard<\/th>\nTest Temp<\/th>\nTest Basis<\/th>\n<\/tr>\n<\/thead>\n
      SAE J537<\/td>\n\u221218 \u00b0C<\/td>\nChengguang catalog reference<\/td>\n<\/tr>\n
      IEC 60095-1<\/td>\n\u221218 \u00b0C<\/td>\nClosely aligned with SAE<\/td>\n<\/tr>\n
      EN 50342-1<\/td>\n\u221218 \u00b0C<\/td>\nDifferent pass criteria<\/td>\n<\/tr>\n
      DIN 43539<\/td>\n\u221218 \u00b0C<\/td>\nLegacy German method<\/td>\n<\/tr>\n
      JIS D 5301<\/td>\n\u221215 \u00b0C<\/td>\nWarmer test point<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      This is why a “650 CCA” label must be read against its standard. Chengguang spec sheets quote SAE J537 CCA<\/strong> across the catalog so comparisons stay consistent \u2014 verify which standard is printed on any competitor’s label before comparing numbers.<\/p>\n

      JIS \u2194 DIN Cross-Reference<\/h2>\n

      For cross-market sourcing, the closest Chengguang DIN equivalents to the JIS range (dimensional approximations \u2014 always verify hold-down and terminals):<\/p>\n\n\n\n\n\n\n\n\n
      JIS Model<\/th>\nDIN Equivalent<\/th>\nJIS Dimensions (mm)<\/th>\nDIN Dimensions (mm)<\/th>\nFit Match<\/th>\n<\/tr>\n<\/thead>\n
      65D26<\/td>\n56638 (DIN66)<\/td>\n260 \u00d7 173 \u00d7 202\u2013225<\/td>\n278 \u00d7 175 \u00d7 175\u2013190<\/td>\nVerify<\/td>\n<\/tr>\n
      105D31<\/td>\n58043 (DIN80)<\/td>\n306 \u00d7 173 \u00d7 202\u2013225<\/td>\n315 \u00d7 175 \u00d7 175\u2013190<\/td>\nVerify<\/td>\n<\/tr>\n
      95E41<\/td>\n58827 (DIN88)<\/td>\n410 \u00d7 176 \u00d7 213\u2013233<\/td>\n353 \u00d7 175 \u00d7 175\u2013190<\/td>\nDifferent<\/td>\n<\/tr>\n
      145G51<\/td>\n60038 (DIN100)<\/td>\n508 \u00d7 222 \u00d7 212\u2013240<\/td>\n393 \u00d7 175 \u00d7 175\u2013190<\/td>\nDifferent<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      The recurring caveat: a B00 top-frame JIS battery and a B13 bottom-rail DIN battery of similar dimensions will not<\/strong> interchange without an adapter. Hold-down is the first check, not the Ah number.<\/p>\n

      JIS D 5301 \u2014 What the Standard Actually Tests<\/h2>\n

      JIS D 5301 is the governing document for Japanese automotive batteries. Beyond CCA, it prescribes the tests a JIS battery must pass:<\/p>\n\n\n\n\n\n\n\n\n\n
      Test<\/th>\nWhat It Checks<\/th>\nTypical Requirement<\/th>\n<\/tr>\n<\/thead>\n
      Cold-cranking (CCA)<\/td>\nCranking amps at \u221215 \u00b0C<\/td>\nModel-specific rating<\/td>\n<\/tr>\n
      High-rate discharge<\/td>\nSustained high current without voltage collapse<\/td>\nVoltage above threshold for duration<\/td>\n<\/tr>\n
      Charge acceptance<\/td>\nHow fast the battery re-absorbs charge<\/td>\nCurrent at set voltage<\/td>\n<\/tr>\n
      Vibration<\/td>\nSurvival under vehicle shaking<\/td>\n3g RMS \/ 8 h<\/td>\n<\/tr>\n
      Water consumption<\/td>\nElectrolyte loss over life<\/td>\nLow loss (Ca-Ca grids)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Chengguang tests every JIS unit to JIS D 5301 and cross-references CCA to SAE J537 (\u221218 \u00b0C) so spec-sheet comparisons stay consistent across standards.<\/p>\n

      JIS vs DIN vs BCI \u2014 At a Glance<\/h2>\n\n\n\n\n\n\n\n\n\n
      Attribute<\/th>\nJIS<\/th>\nDIN<\/th>\nBCI<\/th>\n<\/tr>\n<\/thead>\n
      Code format<\/td>\nPerformance + size (65D26)<\/td>\n5-digit numeric (56638)<\/td>\nGroup number (Group 48)<\/td>\n<\/tr>\n
      Hold-down<\/td>\nB00 top-frame clamp<\/td>\nB13 bottom-rail lip<\/td>\nBracket\/top clamp<\/td>\n<\/tr>\n
      Terminal<\/td>\nT1 post (small\/large)<\/td>\nStandard post (\u220519.5\/17.9)<\/td>\nSide or top post<\/td>\n<\/tr>\n
      CCA test<\/td>\n\u221215 \u00b0C (D 5301)<\/td>\n\u221218 \u00b0C (DIN 43539 \/ EN)<\/td>\n\u221218 \u00b0C (SAE J537)<\/td>\n<\/tr>\n
      Primary markets<\/td>\nAsia, Africa, Middle East, Oceania<\/td>\nEurope + European aftermarket<\/td>\nNorth America<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Chengguang manufactures JIS and DIN and cross-references BCI. The hold-down and terminal type \u2014 not the Ah rating \u2014 are what decide interchangeability.<\/p>\n

      Frequently Asked Questions<\/h2>\n

      Is NS70 the same as 65D26?<\/strong> Yes \u2014 the same physical battery. NS70 is the Southeast Asia\/Australia naming, N50 is the Middle East\/Africa naming, and 55D26 is the economy variant of the same 260 \u00d7 173 mm case.<\/p>\n

      Can I upgrade from 55B24 to 65D26?<\/strong> Only if the tray fits \u2014 the 65D26 is 22 mm longer and 44 mm wider than the 55B24. Measure before buying.<\/p>\n

      What does the “D” in 65D26 mean?<\/strong> The D-series width class (173 mm). B-series is 129 mm. Width class is the first fitment decision.<\/p>\n

      Why does the same case have different Ah ratings?<\/strong> The 65D26 case can be built to 55, 65, or 70 Ah by varying plate count and paste density \u2014 the label Ah, not the case name, is the purchase specification.<\/p>\n

      What is the difference between JIS and SAE CCA?<\/strong> JIS D 5301 tests at \u221215 \u00b0C versus SAE’s \u221218 \u00b0C \u2014 different test procedures, so the two numbers are not directly convertible. Chengguang quotes SAE J537 CCA for consistent comparison.<\/p>\n

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