Battery compatibility
Chemistry changes the series range
- Li-ion (ternary/NMC)
- 7–25S
- LiFePO4 (LFP)
- 8–25S
- Lithium titanate (LTO)
- 14–25S
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Product-family image. Exact SKU appearance and supplied items are not confirmed by this image.
JKBMS JK-B1A / B2A Series
JK-B2A25S-CR60P
$380.00Choose configuration
JK-B2A25S-CR60P
JK-B2A25S-CR60P is the highest-current model in the JK B1A / B2A active-balance family. The V23.0.1 specification covers 7-25S ternary, 8-25S LiFePO4 and 14-25S LTO packs on a 20-110 V supply, lists 600 A maximum charge and discharge current with a 1000 A instantaneous figure, and runs 2 A of capacitor-transfer active balancing by default. Bluetooth, UART, RS485 and CAN sit on fixed connectors alongside a standard display port, and the board adds a 10 A battery heating circuit, two dry-contact channels, ACC and charger detection, alarm output and discharge pre-charge. Protection thresholds for overvoltage, undervoltage, overcurrent, over-temperature and low-temperature each have their own recovery value.
BMS selectorChoose configuration
Selected configuration$380.00
Free shipping on all products except battery kits. Orders containing battery kits have a flat US$100 shipping fee per order.
Selected SKU facts
- Selected model
- JK-B2A25S-CR60P
- Configuration
- JK-B2A25S-CR60P
- Technical status
- Documented model; confirm shipped revision
- Battery chemistry / strings
- Li-ion (ternary/NMC): 7-25S; LiFePO4 (LFP): 8-25S; Lithium titanate (LTO): 14-25S
- Maximum discharge (not continuous)
- 600 A
- Maximum charge
- 600 A
- Active balance
- 2 A
- Documented standard interfaces
- Bluetooth, UART, RS485, CAN, display interface
The specification lists maximum and instantaneous figures, not a continuous duty rating. Busbars, terminals, fusing, cooling and cells must support the intended current.
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.
HARDWARE SPECIFICATIONS
JK-B2A25S-CR60P data by hardware revision
The V23.0.1 specification maps JK-B2A25S-CR60P to 7-25S ternary, 8-25S LiFePO4 and 14-25S LTO packs, lists 600 A maximum charge and discharge current with a 1000 A instantaneous figure, 2 A active balancing, a 20-110 V supply range and a 10 A heating circuit, and defines Bluetooth, UART, RS485 and CAN on fixed connectors.
Electrical limits
Use the correct rating label
- Active balance
- 2 A
- Maximum charge
- 600 A
- Maximum discharge
- 600 A
- Instantaneous current
- 1000 A
- Supply voltage
- 20–110 V
- Cell-voltage accuracy
- ±3 mV
The specification lists maximum and instantaneous figures, not a continuous duty rating. Busbars, terminals, fusing, cooling and cells must support the intended current.
Interfaces and functions
Standard is not the same as optional
Standard
Bluetooth · UART · RS485 · CAN · display interface
Additional standard functions
2 A active balancing · Charge overvoltage and overcurrent protection · Discharge undervoltage and overcurrent protection · Charge and discharge over-temperature protection · Low-temperature charge protection · 10 A battery heating circuit · Alarm output · Discharge pre-charge · Emergency switch · Intelligent sleep · ACC / charger detection · Two dry-contact channels
- V23.0.1 defines RS485 and CAN on the fixed four-pin P7 communication connector, so both signal pairs are present on the board; the protocol and address are set in the app.
- A physical CAN or RS485 port does not by itself confirm inverter protocol compatibility.
- The display interface is standard; the screen itself is a separate option.
Mechanical and environment
Match dimensions to the label
- V23.0.1
- 303 × 52.5 × 126.1 mm · 1945 g
- Operating temperature
- -30°C to 70°C
- Maximum operating power
- 1.2 W
Revision control matters.
- V23.0.1 is dated 2026-09-17 and is the revision this listing was written from; confirm the label on the board that ships.
- The specification gives 600 A as the maximum charge and discharge figure and 1000 A as the instantaneous figure; it does not publish a continuous current class.
- Balancing starts at 3 V / 3 V / 2 V and the 2 A balance current is the default and adjustable in the app against pack capacity.
Before ordering
Four details that prevent the wrong configuration
- Confirm battery chemistry and the exact string count within 7-25S ternary, 8-25S LiFePO4 or 14-25S LTO.
- Confirm the sustained charge and discharge duty; 600 A is a maximum, not a continuous rating.
- State whether heating, alarm output, dry contact or ACC / charger detection is required in the order.
- Provide the inverter brand, model and protocol before relying on CAN or RS485.
- Size heating wiring at 16 AWG or larger and series a 45-65 °C normally closed thermal switch as secondary protection.
Product details
Supply scope and specifications
Key features
- Chemistry-specific support: 7-25S ternary, 8-25S LiFePO4, 14-25S LTO
- Maximum charge and discharge current: 600 A; instantaneous current: 1000 A
- 2 A capacitor-transfer active balancing, adjustable in the app against capacity
- Standard interfaces on fixed connectors: Bluetooth, UART, RS485, CAN and a display port
- 10 A battery heating circuit with a 45-65 °C thermal-switch recommendation
- Two dry-contact channels, ACC / charger detection, alarm output and discharge pre-charge
- V23.0.1 mechanical reference: 303 × 52.5 × 126.1 mm, 1945 g
Included
- Selected configuration: JK-B2A25S-CR60P
- Exact harness and supplied items require confirmation against the packing list.
Not included
- Battery cells, battery enclosure, inverter, charger, and external power cabling
- Display screen, external contactors, breakers, fuses, heating film, and installation hardware unless specified
- Onsite installation, commissioning, firmware setup, or inverter configuration service
Selected modelJK-B2A25S-CR60P
ConfigurationJK-B2A25S-CR60P
Technical statusDocumented model; confirm shipped revision
Battery chemistry / stringsLi-ion (ternary/NMC): 7-25S; LiFePO4 (LFP): 8-25S; Lithium titanate (LTO): 14-25S
Maximum discharge (not continuous)600 A
Maximum charge600 A
Active balance2 A
Documented standard interfacesBluetooth, UART, RS485, CAN, display interface
Exact-model verification
Specifications are revision-specific. Confirm the supplied hardware and harness before installation.
JK-B2A25S-CR60P manuals and wiringJK BMS app downloads and compatibilityCompare this configuration
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