Match the product to the battery system
Confirm the exact supported battery string range on the product page. Match the current rating to the actual load and protection design. Confirm the required active-balancing current before choosing a model.
1 / 2JKBMS JK-B1A / B2A Series
Current-revision specifications require factory confirmation
Technical specifications for the exact current JK-B2A20S20P hardware revision are being confirmed. Before ordering, provide the battery chemistry, series count, expected current duty, required communication interface and a product-label photo so the factory can match the correct manual, dimensions and harness.
Shipping is calculated by destination during checkout. PayPal verifies and captures the final amount securely.
TECHNICAL VERIFICATION STATUS
An exact-model public technical manual was not found in the verified documentation set. Current-revision specifications must be confirmed by the factory before this listing is treated as manual-verified.
Send the information to zhou@jkbms.net so the factory can match the exact manual and harness.
Product details
Detailed product information
Review the full product illustrations, dimensions, component information, and application notes before selecting a configuration.

SELECTION HELP
Check strings, current, active balancing, display, and communication requirements before comparing models.
Read guideBALANCING GUIDEUnderstand how balance-current class relates to cell capacity, imbalance, and correction time.
Read guideCOMMUNICATION GUIDESeparate physical interface choice from inverter protocol and system compatibility requirements.
Read guideMODEL-SPECIFIC APPLICATION NOTES
This listing is not presented as manual-verified for the exact current hardware revision. Request the matching manual and written factory confirmation before payment or wiring.
JKBMS JK-B2A20S20P Smart Active Balance BMS belongs to the JK-B2A series and is best reviewed for compact lithium packs where active balancing, current rating, and app monitoring are key selection inputs.
Use the exact product page to confirm the selected configuration, accessories, and quotation scope for JK-B2A20S20P.
For communication planning, confirm whether the final installation needs Bluetooth, LCD, CAN, RS485, USB, or a model-specific adapter.
Model planning
Use this summary to confirm whether JKBMS JK-B2A20S20P Smart Active Balance BMS fits the battery system before checkout, quotation, or installation.
System fit checks
Use these checks before selecting a configuration, requesting a quote, or installing the product in a battery system.
Confirm the exact supported battery string range on the product page. Match the current rating to the actual load and protection design. Confirm the required active-balancing current before choosing a model.
The current hardware revision, communication interface, harness and pinout require factory confirmation.
Use suitable fusing, cable size, torque, ventilation, insulation, and commissioning checks for the final battery system.
Verify this product on https://www.jkbms.net/products/jkbms-jk-b2a20s20p-smart-bms-200a-20s-active-balancer, confirm the official domain is www.jkbms.net, and use zhou@jkbms.net for quotation checks before bulk payment or project procurement.
Product FAQ
Not yet for the exact current hardware revision. Ask the factory to match the current manual and product label before relying on cell-count, current, communication, dimensions or harness claims.
Provide battery chemistry, series count, expected charge/discharge duty, required communication interface and a product-label or revision photo. The factory should confirm the matching manual and harness.
JKBMS JK-B2A20S20P Smart Active Balance BMS is listed on www.jkbms.net, the official factory website operated by JKBMS Electronic Technology Co.,Ltd. Use https://www.jkbms.net and the official sales email zhou@jkbms.net to verify quotes before payment.
Selected JKBMS smart BMS model or display bundle; Model-specific wiring harness and standard accessories supplied with the product; Documentation or setup references supplied with the selected package. Not included: Battery cells, battery enclosure, inverter, charger, and external power cabling; External contactors, breakers, fuses, and installation hardware unless specified. The final selected configuration and written quotation remain the reference for supply scope.
Purchasable JKBMS products can be ordered from the product page. Verify the model, configuration, destination, and official sales contact before bulk purchasing or project use. Return and shipping rules are published at https://www.jkbms.net/policies.
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