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Battery Guides

Battery size codes, technologies and selection criteria for automotive, pickup, truck and bus applications.

13 guides

  • Deep Cycle Battery Guide

    How deep cycle batteries differ from starting batteries, depth of discharge and cycle life, capacity at C5, C10, C20 and C100 rates, and 6 V, 8 V and 12 V packs for golf carts, solar and marine use.

    7 min read

  • Forklift Traction Battery Guide

    Traction battery basics for forklifts: 2 V cells and system voltage, C5 capacity, PzS/PzB/PzV cells, tray size and counterweight, REMA and SB connectors, charging, and what to send in an RFQ.

    9 min read

  • EV and Hybrid 12 V Auxiliary Battery Guide

    The role of the 12 V auxiliary battery in BEV, HEV and PHEV vehicles, the technologies used, venting for in-cabin and boot installations, and what to check when replacing one.

    7 min read

  • Battery Terminal Layout Guide

    How JIS L/R codes, European layouts 0, 1, 3 and 4 and the JIS (S) suffix describe terminal position and post size, and why a reversed layout is a supply error.

    6 min read

  • How to Select a Battery by Ah and CCA

    What 20-hour capacity, cold cranking amps and reserve capacity mean under SAE J537, EN 50342-1 and JIS D 5301, and why ratings from different standards cannot be compared directly.

    7 min read

  • EFB vs Standard Flooded Batteries

    How an Enhanced Flooded Battery differs from a standard flooded starter battery in construction and testing, when start-stop vehicles require EFB, and what to specify when replacing one.

    7 min read

  • N-Series Truck Battery Codes: N50 to N200

    What N50, N70, N100, N120, N150, N200, NS40 and NS60 battery codes mean, how they map to JIS D, E, F, G and H cases, and how they are used in 24 V truck systems.

    6 min read

  • JIS Battery Size Codes Explained

    How to decode JIS D 5301 battery codes such as 55B24L, 95D31R and 245H52: performance rank, case group, length, terminal position, the (S) suffix and idling-stop codes.

    7 min read

  • Truck Battery Selection Guide

    How to select batteries for trucks and buses: 12 V and 24 V systems, series and parallel wiring, JIS, N-series, DIN and BCI sizes, cranking performance, climate and dry-charged supply.

    5 min read

  • EFB vs AGM Batteries

    How Enhanced Flooded Batteries and Absorbent Glass Mat batteries differ in construction, charging behavior, heat tolerance and application, and why start-stop vehicles must not be downgraded.

    5 min read

  • JIS vs DIN Automotive Batteries

    The practical differences between JIS and DIN/EN batteries: case dimensions, terminal posts, hold-down design, performance ratings and when one can substitute for the other.

    4 min read

  • How Automotive Battery Sizes Work

    How to read JIS battery codes such as 55B24L, N-series designations such as N70 and N150, and European DIN/EN codes, and what each code does and does not tell a buyer.

    5 min read

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