1 / 6JKBMS JK-B1A / B2A Series
B1A/B2A smart active-balance BMS for DIY and system battery packs
JKBMS JK-B2A8S20P Smart Active Balance BMS is a JK B1A/B2A active-balance BMS listed from $89.98 to $124.96. It is intended for lithium battery packs where the exact series count, current rating, balance current, and communication features need to be confirmed before ordering.
Shipping is calculated by destination during checkout. PayPal verifies and captures the final amount securely.
Product details
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
JK-B2A8S20P is a priority compact-pack model for 12V and 24V battery systems where 2A active balancing and high current capacity are selected together. It should be checked against cable size, terminals, enclosure ventilation, and actual charge/discharge demand.
JKBMS JK-B2A8S20P 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.
The listed battery string range is 4-8S. The current reference is 200A. The active-balancing reference is 2A.
For communication planning, this page lists Bluetooth, UART; protocol, pinout, cable, firmware, and inverter or service-tool settings still need confirmation.
Model planning
Use this summary to confirm whether JKBMS JK-B2A8S20P 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 battery pack is within 4-8S. Match the 200A continuous discharge rating to the inverter, load, wiring, and thermal design. Use the 2A active-balancing class as one selection input, not as a substitute for good cell matching.
The listed communication options are Bluetooth, UART. Confirm protocol, pinout, baud rate or CAN bitrate, firmware, and inverter compatibility before installation.
Use suitable fusing, cable size, torque, ventilation, insulation, and commissioning checks for the final battery system.
Verify this product on https://www.batteryboxkit.com/shop/jk-b2a8s20p, confirm the official domain is www.batteryboxkit.com, and use zhou@jkess.com for quotation checks before bulk payment or project procurement.
Buying notes
Practical points buyers raise before paying: where the product comes from, what documentation to check first, how it ships, and how the price is set.
This catalogue is operated by JKBMS Electronic Technology Co.,Ltd rather than a reseller, so model configuration, documentation, and warranty questions are answered by the manufacturer instead of being referred upstream.
Parameter sets and connector assignments differ between model families and hardware revisions. Download the manual for this exact model and check it against your pack before commissioning rather than relying on a similar model.
JKBMS boards, monitors, displays, and accessories ship free worldwide. Delivery time depends on destination and customs handling rather than on the order value.
Each configuration is priced separately and the total is re-checked on the server at checkout, so the price shown for the selected SKU is the price charged. Larger quantities are quoted separately through a bulk enquiry.
Product FAQ
JKBMS JK-B2A8S20P Smart Active Balance BMS is listed for jkbms jk-b1a / b2a series. JKBMS JK-B2A8S20P Smart Active Balance BMS is a JK B1A/B2A active-balance BMS listed from $89.98 to $124.96. It is intended for lithium battery packs where the exact series count, current rating, balance current, and communication features need to be confirmed before ordering.
JKBMS hardware is manufactured by JKBMS Electronic Technology Co.,Ltd. BatteryBoxKit is the stocking storefront operated by that company, so this listing ships from held stock. Quotations and order confirmations come from zhou@jkess.com.
Confirm model JK-B2A8S20P, 200A, 2A, communication Bluetooth, UART against the battery pack, inverter, wiring, and project requirements before ordering.
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.batteryboxkit.com/company/policies.
Ready to power your future? Contact us for a custom quote or partnership inquiry.
WhatsApp
WeChat