How to Identify a JKBMS Board by Model Code

What the code segments mean

A JKBMS code packs the family, balance current, string range and current rating into one string. Reading JK-BD6A24S20P as its parts rather than as a name is the fastest way to find the right product page.

• JK-BD / JK-PB / JK-B1A / JK-B2A — the product family, which decides the feature set
• 6A / 4A / 1A / 2A — active balance current in the family segment, not the pack current
• 24S — the maximum supported series cell count, often with a minimum below it
• 20P — the continuous discharge rating, here 200A

Confirming a board you already own

The silkscreen, the app and the label can disagree after a firmware update or a warranty replacement. Check the app-reported model first, then the label, then the physical port set, and treat the port set as decisive when they conflict.

Ratings differ between model codes that look almost identical. Confirm the figures on the product page for the exact code before ordering.

Where the code stops being enough

Two boards with the same code can still ship with different display bundles, cable sets or connector orientations. If the board has to drop into an existing enclosure, check the mounting pitch and terminal layout rather than assuming the code guarantees a fit.

Official next steps

Frequently asked questions