JKBMS JK-B1A / B2A Series
JKBMS JK-B2A24S30P Smart Active Balance BMS
7-24S/8-24S 300 A smart BMS with 2 A active balancingFrom $177.98View product
JKBMS JK-B1A / B2A Series
JK-B2A32S-RP
$251.50Choose configuration
Standard package
Product details
JK-B2A32S-RP. Battery chemistry / strings: Li-ion (NMC): 7-32S; LiFePO4 (LFP): 8-32S; LTO: 14-32S; Maximum discharge (not continuous): 300 A; Active balance: 2 A; Documented standard interfaces: Bluetooth, UART, CAN, RS485, display interface. Confirm shipped revision, connectors and harness.
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Product-family image. Exact SKU appearance and supplied items are not confirmed by this image.
- Selected model
- JK-B2A32S-RP
- Battery chemistry / strings
- Li-ion (NMC): 7-32S; LiFePO4 (LFP): 8-32S; LTO: 14-32S
- Maximum discharge (not continuous)
- 300 A
- Active balance
- 2 A
- Model Feature
- Relay-controlled BMS; relay selection requires system design
- Model Feature
- Shunt specified by company catalog
- Model Feature
- Integrated precharge
- Model Feature
- Common-port operation supported
- Model Feature
- External relay-controlled BMS; confirm shunt and relay sizing
Choose configuration
BMS features
US$1 / BMSH = heating interface, C = CAN, R = RS485. Each added feature is US$1 per BMS, added after the 5% bundle discount. Features already included in this model are not charged again.
Included as standard · no selection neededCAN (C)RS485 (R)
Final modelB2A32SRP
Complete your BMS
Save 5%Choose a display or WiFi module. Save 5% on your BMS and these selected accessories.
The 5% saving applies once to your BMS and selected display or WiFi accessories.
All extras are optional. You can continue without adding any.
Selected SKU facts
- Selected model
- JK-B2A32S-RP
- Configuration
- Standard package
- Model Feature
- Relay-controlled BMS; relay selection requires system design
- Model Feature
- Shunt specified by company catalog
- Model Feature
- Integrated precharge
- Model Feature
- Common-port operation supported
- Battery chemistry / strings
- Li-ion (NMC): 7-32S; LiFePO4 (LFP): 8-32S; LTO: 14-32S
- Active balance
- 2 A
- Documented standard interfaces
- Bluetooth, UART, CAN, RS485, display interface
- Maximum charge
- 300 A
- Maximum discharge (not continuous)
- 300 A
- Model Feature
- External relay-controlled BMS; confirm shunt and relay sizing
- Specification basis
- Company model catalog (2026-07-11); JK B2A32S RP User Manual V20.1.1 (20.1.1)
Manual data is revision-specific. Confirm the shipped label and harness before wiring.
Product details
Supply scope and specifications
Key features
- Model Feature: Relay-controlled BMS; relay selection requires system design
- Model Feature: Shunt specified by company catalog
- Model Feature: Integrated precharge
- Model Feature: Common-port operation supported
- Battery chemistry / strings: Li-ion (NMC): 7-32S; LiFePO4 (LFP): 8-32S; LTO: 14-32S
- Active balance: 2 A
Included
- Selected configuration: Standard package
- Exact harness and supplied items require confirmation against the packing list.
Not included
- Battery cells, battery enclosure, inverter, charger, and external power cabling
- External contactors, breakers, fuses, and installation hardware unless specified
- Onsite installation, commissioning, firmware setup, or inverter configuration service
Selected modelJK-B2A32S-RP
ConfigurationStandard package
Model FeatureRelay-controlled BMS; relay selection requires system design
Model FeatureShunt specified by company catalog
Model FeatureIntegrated precharge
Model FeatureCommon-port operation supported
Battery chemistry / stringsLi-ion (NMC): 7-32S; LiFePO4 (LFP): 8-32S; LTO: 14-32S
Active balance2 A
Documented standard interfacesBluetooth, UART, CAN, RS485, display interface
Maximum charge300 A
Maximum discharge (not continuous)300 A
Model FeatureExternal relay-controlled BMS; confirm shunt and relay sizing
Specification basisCompany model catalog (2026-07-11); JK B2A32S RP User Manual V20.1.1 (20.1.1)
Exact-model verification
No exact-model manual association is confirmed for the selected configuration.
JK-B2A32S-RP manuals and wiringJK BMS app downloads and compatibilityCompare this configurationBMS selection and accessory pricing guideProtocol choices and inverter compatibilityCurrent product facts — textCurrent product facts — JSONProduct FAQ
JK BMS B2A32SRP compatibility, configuration and purchase FAQ
How do I choose the correct BMS for my battery?
Provide the chemistry, exact series count, continuous charge and discharge current, and peak current with its duration. Then check balancing current, installation space, cooling, inverter, hardware revision and matched wiring. Nominal voltage, a series name or a similar connector alone does not establish compatibility.
Can I add a 4.3-inch display and WiFi module to this BMS?
Yes. The current catalogue offers these options for this BMS, independently or together. Each selected accessory is supplied once per BMS; a display already included in the selected package is not charged twice. Confirm the adapter and harness for the supplied hardware revision.
Do two selected accessories give a 10% discount?
No. Selecting a display or WiFi applies the 5% discount once to the BMS and those accessories. Two accessories do not double the discount. H/C/R feature fees do not trigger or receive the discount and are added in full afterwards.
Can this BMS be ordered with a 7-inch display?
The 7-inch display option is limited to the PB series and is not offered for this BMS. Use the display choices listed on this page and confirm the adapter and harness.
Can I add heating, CAN and RS485, and what do they cost?
H means heating interface, C means CAN and R means RS485. All PB-series models and B2A32S-RP include CAN and RS485 as standard: no selection or extra charge is needed. Each feature not already included costs USD 1 per BMS. Features included in the model are not offered or charged again. The final model retains existing feature letters and adds only newly selected options in H, C, R order, preserving any existing PB suffix. Option fees are added after any 5% bundle discount and do not trigger it. Confirm the model, hardware revision, application protocol and harness for your inverter.
Does CAN or RS485 guarantee compatibility with my inverter?
No. Confirm the exact inverter and BMS models, hardware revision, application protocol, firmware, pinout, cable and settings. A website selection or a matching connector does not prove that the two devices can communicate.
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LocationRoom 1008, Building B4, Yunzhi Science & Technology Park, Guangming District, Shenzhen, China