JK-PB Series 16S Energy Storage BMS Full Guide | V19.0.3 Specification
JK-PB Series 16S Energy Storage BMS Full Guide | V19.0.3 Specification
Published: June 2026 | Brand: JKVOLT JKBMS
JK-PB Series Energy Storage BMS Complete Set (Main Board + Interface Board)
1. Product Overview
The JK-PB16S series is Jikong’s professional lithium battery active balancing BMS, specially designed for off-grid solar storage, RV power, backup power and large lithium PACK systems. The latest V19.0.3 version optimizes communication interfaces, heating control and parallel functions, supporting LiFePO4, ternary lithium and LTO lithium titanate batteries from 7S to 16S (24V~48V).
Core technical highlight: Proprietary energy transfer active balance tech, optional 1A / 2A max balancing current, greatly improve cell consistency, extend battery cycle life and reduce cell aging speed.
Available Models Classification
1A Small Balance Current Series
- JK-PB1A16S-10P | Max Continuous 100A Discharge
- JK-PB1A16S-15P | Max Continuous 150A Discharge
2A Large Balance Current Series
- JK-PB2A16S-15P | Max Continuous 150A Discharge
- JK-PB2A16S-20P | Max Continuous 200A Discharge
Interface Board with CAN, RS485, Dry Contact & DIP Switch Address Setting
2. Core Standard Features (All PB16S Models)
Monitoring & Control
- Built-in Bluetooth, iOS & Android JKBMS APP
- PC Upper Computer monitoring support
- ±3mV high-precision voltage sampling
- SOC real-time calculation & time log record
- Optional external LCD display screen
Multi Communication Ports
- Dual RS485 interfaces (Inverter + Parallel)
- CAN bus compatible with mainstream inverters
- Max 16 units parallel monitoring via RS485-2
- DIP switch address setting (0~15)
Full Protection System
- Charge overvoltage / Discharge undervoltage protection
- Charge & Discharge overcurrent auto-recovery
- Over temperature / Low temperature charge lock
- Instant short circuit auto-protection
- MOS high-temperature cut-off safety design
Auxiliary Practical Functions
- Built-in 10A low-temperature heating circuit
- 2-channel dry contact for fan / alarm buzzer
- Discharge pre-charge function (0~5s adjustable)
- 30-min emergency bypass switch
- Intelligent sleep to reduce standby power loss
Official Size Drawing of JK-PB Series Main Board
3. Full Technical Specification Table
| Item | Parameter |
|---|---|
| Working Voltage | 20V ~ 70V |
| Operating Temp | -30℃ ~ 70℃ |
| Max Balance Current | 1A (PB1A) / 2A (PB2A) |
| Max Continuous Discharge | 100A / 150A / 200A (Depends on P suffix) |
| Max Instant Current | 200A / 300A / 400A |
| Support Cell String | 7~16S |
| Supported Battery Chem | LiFePO4 / Ternary / LTO |
| Board Dimension | 300 * 100 * 24 mm |
| Net Weight | 1000g |
4. Application Scenarios
Typical Application: Off-Grid Solar & RV Lithium Battery System
- Off-grid solar energy storage systems (48V LiFePO4 battery banks)
- RV, camper, marine lithium power packs
- Base station backup emergency power supply
- Large industrial lithium energy storage PACK
- Home residential solar storage with inverter connection
5. V19.0.3 Version Upgrade Highlights
- Optimized interface board wiring definition, stable CAN & RS485 communication
- Upgrade parallel multi-unit monitoring logic, fix address identification bug
- Complete standard accessory list added for one-stop installation
- Adjust heating & low-temperature protection threshold algorithm
- Improve LED status indicator logic for easier fault diagnosis
Complete Standard Accessories List (V19.0.3 Spec Version)
6. Frequently Asked Questions (FAQ)
Q1: What’s the difference between PB1A and PB2A series?
PB1A supports 1A active balancing for small capacity batteries; PB2A with 2A big balance current, ideal for large capacity battery packs with serious cell voltage difference.
Q2: Can I connect multiple PB16S BMS together?
Yes, max 16 units parallel via RS485-2 port, set unique DIP address 0~15, host address 0 for upper computer monitoring.
Q3: Does this BMS work with Victron, Growatt, Deye inverters?
Built-in CAN and dual RS485 ports, compatible with most mainstream solar inverters, switch communication protocol inside JKBMS APP.
Q4: What accessories come with standard package?
Interface board, M6 bolts, sampling wires, heating wire, RJ45 cable, activation switch terminal, full wiring harness set as listed in V19.0.3 spec sheet.
Parallel Connection Diagram for Up To 16 Packs Monitoring
Shop Our Full JKBMS Range
Shop all JK-PB16S 100A / 150A / 200A active balance BMS on JKVOLT JKBMS Collection Page. All units support 7~16S lithium batteries with full communication and protection functions for solar & RV storage projects.