Battery compatibility
Chemistry changes the series range
- Li-ion (ternary/NMC)
- 7–16S
- LiFePO4 (LFP)
- 8–16S
- Lithium titanate (LTO)
- 14–16S
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Product-family image. Exact SKU appearance and supplied items are not confirmed by this image.
JKBMS JK-PB Series
JK-PB2A16S20P
$221.93Choose configuration
JK-PB2A16S20P+7" Display
JK-PB2A16S20P is a 200 A-class energy-storage BMS for 7-16S Li-ion, 8-16S LiFePO4 or 14-16S LTO packs. V19.0.3 explicitly maps the 20P model to 200 A maximum continuous, charge and discharge current. V24.0.1 verifies 2 A active balancing, Bluetooth, CAN, dual RS485, a display interface, heating control, dry contacts, parallel current limiting and discharge precharge. Confirm the hardware revision, protocol and harness before ordering.
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Selected configuration$221.93
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Selected SKU facts
- Selected model
- JK-PB2A16S20P
- Configuration
- JK-PB2A16S20P+7" Display
- Technical status
- Documented model; confirm shipped revision
- Battery chemistry / strings
- Li-ion (ternary/NMC): 7-16S; LiFePO4 (LFP): 8-16S; Lithium titanate (LTO): 14-16S
- Current class (not a continuous rating)
- 200 A
- Active balance
- 2 A
- Documented standard interfaces
- Bluetooth, CAN, RS485-1, RS485-2, display interface
V19.0.3 maps the 20P model to 200 A maximum continuous, charge and discharge current. For V24.0.1 hardware, keep 200 A as the model class and confirm the configured protection limits.
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-PB2A16S20P data by hardware revision
The V19.0.3 manual explicitly maps JK-PB2A16S20P to the 200 A current tier, while V24.0.1 verifies the chemistry-specific cell counts, 2 A active balancing, standard interfaces and V24 enclosure. Match the hardware revision before wiring.
Electrical limits
Use the correct rating label
- Active balance
- 2 A
- Current class
- 200 A
- Supply voltage
- 20–80 V
V19.0.3 maps the 20P model to 200 A maximum continuous, charge and discharge current. For V24.0.1 hardware, keep 200 A as the model class and confirm the configured protection limits.
Interfaces and functions
Standard is not the same as optional
Standard
Bluetooth · CAN · RS485-1 · RS485-2 · display interface
Additional standard functions
Heating control · Two dry-contact outputs · Parallel current limiting · Discharge precharge
- CAN and RS485-1 are provided for inverter communication.
- RS485-2 is used for parallel communication or PC software.
- Protocol compatibility, cable pinout and inverter settings must be confirmed for the target system.
Mechanical and environment
Match dimensions to the label
- V24.0.1
- 300 × 100 × 24 mm
- Operating temperature
- -40°C to 75°C
Revision control matters.
- V19.0.3 explicitly maps JK-PB2A16S-20P to 200 A maximum continuous, charge and discharge current.
- V24.0.1 lists 100 A, 150 A and 200 A tiers; confirm the shipped label and configured limits before relying on a protection setting.
- V19 and V24 wiring, connectors and harnesses must not be mixed by assumption.
- The available documents do not establish that V24 replaces every V19 unit.
- Weight, operating-power value and disputed instantaneous-current values are intentionally not published here pending final adjudication.
TECHNICAL DOCUMENTS
Product manuals
- JK Energy Storage Series BMS Specification (includes JK-PB2A16S-20P) V19.0.3
- JK Energy Storage Series BMS Specification (includes JK-PB2A16S-20P) V24.0.1
Before ordering
Four details that prevent the wrong configuration
- Photograph the product label or confirm the exact hardware/manual revision.
- Provide battery chemistry, series count and expected charge/discharge demand.
- Provide the inverter brand and model, required CAN or RS485 protocol, and parallel-pack plan.
- Confirm display, communication cable, heating, dry-contact and precharge requirements in the order.
Product details
Supply scope and specifications
Key features
- Chemistry-specific support: 7-16S Li-ion, 8-16S LiFePO4, 14-16S LTO
- 200 A current class; V19.0.3 explicitly documents the 20P current tier
- 2 A active cell balancing
- V24 standard interfaces: Bluetooth, CAN, dual RS485 and display
- V24 standard functions: heating, two dry contacts, parallel current limiting and discharge precharge
- Revision-controlled wiring: verify V19 versus V24 before selecting a harness
Included
- Selected configuration: JK-PB2A16S20P+7" Display
- 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-PB2A16S20P
ConfigurationJK-PB2A16S20P+7" Display
Technical statusDocumented model; confirm shipped revision
Battery chemistry / stringsLi-ion (ternary/NMC): 7-16S; LiFePO4 (LFP): 8-16S; Lithium titanate (LTO): 14-16S
Current class (not a continuous rating)200 A
Active balance2 A
Documented standard interfacesBluetooth, CAN, RS485-1, RS485-2, display interface
TECHNICAL SPECIFICATIONS
JK-PB2A16S20P parameter details
Hardware revisions and optional interfaces may differ; confirm the supplied revision before wiring or changing protection settings.
| NMC battery strings | 8-16S |
|---|---|
| LiFePO4 battery strings | 7-16S |
| LTO battery strings | 14-16S |
| Operating voltage | 20-70 V |
| Balancing method | Active balancing |
| Active balancing current | 2 A |
| Main circuit resistance | 0.35 mOhm |
| Continuous discharge current | 200 A |
| Maximum discharge current | 400 A |
| Overcurrent protection setting | 10-200 A |
| Interfaces listed in chart | RS485, CAN and heating interface; confirm supplied configuration |
| Display interface | Supported |
| Alarm interface | Supported |
| Battery heating | Optional |
| Protection functions | Overcurrent, overvoltage, undervoltage, overtemperature, low temperature and short circuit |
| Charge / discharge connection | Common port |
| Cell voltage measurement range | 1-5 V |
| Voltage measurement accuracy | +/-3 mV |
| Overcharge protection voltage | 1.2-4.4 V, adjustable |
| Overcharge release voltage | 1.2-4.4 V, adjustable |
| Overcurrent release delay | 2-600 s, adjustable |
| Overdischarge protection voltage | 1.2-4.4 V, adjustable |
| Overdischarge recovery voltage | 1.2-4.4 V, adjustable |
| Temperature sensing points | 1 internal and 4 external |
| Coulomb counting | Supported |
| Bluetooth app platforms | Android, iOS and HarmonyOS |
| Parallel charge current limiting | Supported |
Exact-model verification
No exact-model wiring PDF is verified for JK-PB2A16S20P. The listed V19.31 file is firmware, not a connection diagram; confirm the BMS label and hardware revision with support.
Check JK-PB2A16S20P wiring document statusSearch all JK-PB2A16S20P documentsJK BMS app downloads and compatibilityCompare this configuration
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