JKBMS JK-B2A24S30P Smart Active Balance BMS, product-family reference image1 / 1

Product-family image. Exact SKU appearance and supplied items are not confirmed by this image.

JKBMS JK-B1A / B2A Series

JK-B2A24S30P

JK-B2A24S30P

JK-B2A24S30P supports 7-24S Li-ion, 8-24S LiFePO4 and 14-24S LTO packs. The V19.0.2 manual lists 300 A maximum charge and discharge current, 600 A instantaneous current and 2 A active balancing. Bluetooth, UART and display are standard; CAN, RS485, heating, alarm, parallel and ACC functions are optional and must be confirmed in the order.

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Selected SKU facts

Selected model
JK-B2A24S30P
Configuration
JK-B2A24S30P
Technical status
Documented model; confirm shipped revision
Battery chemistry / strings
Li-ion (ternary/NMC): 7-24S; LiFePO4 (LFP): 8-24S; Lithium titanate (LTO): 14-24S
Continuous discharge
Unknown - factory confirmation required
Maximum discharge (not continuous)
300 A
Maximum charge
300 A
Active balance
2 A
Documented standard interfaces
Bluetooth, UART, display interface
Optional; not confirmed on this SKU
CAN, RS485, heating control, alarm output, parallel interface, ACC
Manual basis
V19.0.2

Manual maximum values require suitable conductors, terminals, fusing, cooling and battery cells.

Manual data is revision-specific. Confirm the shipped label and harness before wiring.

Optional compatible accessories

No confirmed accessory match for this configuration. Request compatibility confirmation.

MANUAL-VERIFIED TECHNICAL REFERENCE

JK-B2A24S30P data by hardware revision

Verified 2026-08-03

The V19.0.2 manual verifies chemistry-specific 7-24S/8-24S/14-24S limits, 300 A maximum charge and discharge current, 2 A active balancing, operating limits and mechanical data. Wired communication remains configuration-dependent.

Battery compatibility

Chemistry changes the series range

Li-ion (ternary/NMC)
724S
LiFePO4 (LFP)
824S
Lithium titanate (LTO)
1424S

Electrical limits

Use the correct rating label

Active balance
2 A
Maximum charge
300 A
Maximum discharge
300 A
Instantaneous current
600 A
Supply voltage
20100 V
Cell-voltage accuracy
±3 mV

Manual maximum values require suitable conductors, terminals, fusing, cooling and battery cells.

Interfaces and functions

Standard is not the same as optional

Standard

Bluetooth · UART · display interface

Optional / suffix-dependent

CAN · RS485 · heating control · alarm output · parallel interface · ACC

  • CAN and RS485 are optional and must be present in the ordered configuration.
  • A physical CAN or RS485 port does not by itself confirm inverter protocol compatibility.

Mechanical and environment

Match dimensions to the label

V19.0.2
208 × 120.7 × 15.6 mm · 675 g
Operating temperature
-30°C to 70°C
Maximum operating power
1.2 W
Revision control matters.
  • V19.0.2 is the newest applicable revision located in the verified package; this does not by itself prove the current shipment revision.
  • Confirm the shipped label and communication suffix before using the manual's connector definitions.

Manual basis

Documents reviewed for this page

Browse the official technical library →

Before ordering

Four details that prevent the wrong configuration

  1. Confirm battery chemistry and exact series count.
  2. Confirm the expected charge/discharge duty, cable size, terminals, fuse and cooling.
  3. State whether CAN, RS485, heating, alarm, parallel interface or ACC is required.
  4. Provide the inverter brand/model and confirm protocol, firmware, cable and pinout before shipment.

Product details

Supply scope and specifications

Key features

  • Chemistry-specific support: 7-24S Li-ion, 8-24S LiFePO4, 14-24S LTO
  • Maximum charge/discharge current: 300 A; instantaneous current: 600 A
  • 2 A active cell balancing and ±3 mV cell-voltage accuracy
  • Standard interfaces: Bluetooth, UART and display
  • Optional by configuration: CAN, RS485, heating, alarm, parallel interface and ACC
  • V19.0.2 mechanical reference: 208 × 120.7 × 15.6 mm, 675 g

Included

  • Selected configuration: JK-B2A24S30P
  • 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-B2A24S30P
ConfigurationJK-B2A24S30P
Technical statusDocumented model; confirm shipped revision
Battery chemistry / stringsLi-ion (ternary/NMC): 7-24S; LiFePO4 (LFP): 8-24S; Lithium titanate (LTO): 14-24S
Continuous dischargeUnknown - factory confirmation required
Maximum discharge (not continuous)300 A
Maximum charge300 A
Active balance2 A
Documented standard interfacesBluetooth, UART, display interface
Optional; not confirmed on this SKUCAN, RS485, heating control, alarm output, parallel interface, ACC
Manual basisV19.0.2

Exact-model verification

JKBMS JK-B2A24S-30P user manual V19.0.2

Manual and wiring libraryCompare this configuration

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