Overall view of two PB-series battery groups connected in parallel, with the main unit on the left and slave unit on the right

JKBMS JIKONG PB Series: Parallel Wiring & Setup Example for Two 8S Packs

Quick answer: This JKBMS JIKONG PB-series example shows two 8S lithium battery groups already connected in parallel, with the main unit on the left and the slave unit on the right. In the provided app screenshots, the main address is 0 and the slave address is 1. These are example settings only; check your exact product description and manual before wiring or changing parameters.

This photo guide shows the main and slave units, display screens, interface boards, and example protocol settings for the illustrated setup.

Shop PB-series products

These PB inverter BMS V19 models support 8S–16S configurations. Choose the current rating and model that match your system:

For PB V19 displays, choose the dedicated TTL-P model: LCD-4.3-TTL-P or LCD-7.0-TTL-P. These PB-only displays are not for B/BD boards. The photo example is not a universal product recommendation; confirm your exact model and current requirements before purchase.

Important — read before operation: The detailed wiring and parameter descriptions for the protection board and display must be checked against both the product description for your exact model and its manual. Read those materials carefully before connecting wires or changing settings. The photos below document one completed example; they are not a substitute for model-specific instructions.

1. Overall parallel-system overview

In the supplied overview image, the main unit is on the left and the slave unit is on the right. The system contains two 8S lithium battery groups connected in parallel.

Overall view of two PB-series battery groups connected in parallel, with the main unit on the left and slave unit on the right

2. Main-unit display

The main-unit display shows the combined system overview. In this example, the display reports two packs.

Main-unit display showing the two-pack system overview

3. Battery-group overview

The group screen provides an overview of the two battery groups shown in this setup.

Display screen showing the two battery groups in the parallel setup

4. Individual battery-group information

This screen shows example information for one battery group, including its capacity, remaining capacity, state of charge, and cell-voltage readings.

Individual battery-group information and cell-voltage readings on the display

5. Main-unit interface-board connections

Use this photo to identify the interface-board connections shown for the main unit. Confirm each cable and port against the manual for your exact board revision.

Interface-board connection example for the PB-series main unit

6. Slave-unit interface-board connections

This photo shows the interface-board connections for the slave unit in the example system.

Interface-board connection example for the PB-series slave unit

7. Display protocol settings shown in the example

The display protocol screen in the supplied photo shows:

  • RS485 Protocol No.: 015 — JK BMS PBxx Series LCD Protocol V1.0
  • CAN Protocol No.: 000 — JK BMS CAN Protocol (250K) V2.0

PB-series display protocol settings showing RS485 protocol 015 and CAN protocol 000

RS485 and CAN protocol choices shown on the display

The following are the visible menu entries in the supplied screenshots. Missing numbers are not shown in these images, and text ending in “…” is truncated on screen. These are selectable protocol labels, not a guarantee that any particular inverter is compatible.

RS485 protocol list (screenshots 1 and 2)

  • 000 — 4G-GPS Remote module protocol V4.2
  • 001 — JK BMS RS485 Modbus V1.0
  • 003 — China tower shared battery cabinet V1.1
  • 004 — PACE_RS485_Modbus_V1.3
  • 005 — PYLON_low_voltage_Protocol_RS485_V3.5
  • 006 — Growatt_BMS_RS485_Protocol_1xSxxP_ESS_Rev2.01
  • 007 — Voltronic_Inverter_and_BMS_485_communication_pro… (truncated in screenshot)
  • 009 — WOW_RS485_Modbus_V1.3
  • 010 — JK BMS LCD Protocol V2.0
  • 013 — (9600)JK BMS RS485 Modbus V1.0
  • 014 — (9600)PYLON_low_voltage_Protocol_RS485_V3.5
  • 015 — JK BMS PBxx SERIES LCD Protocol V1.0

RS485 screenshot 1:

RS485 protocol menu entries 009, 010, 013, 014, 015

RS485 screenshot 2:

RS485 protocol menu entries 000, 001, 003, 004, 005, 006, 007

CAN protocol list (screenshots 3 and 4)

  • 000 — JK BMS CAN Protocol (250K) V2.0
  • 001 — Deye Low-voltage hybrid inverter CAN communication … (truncated in screenshot)
  • 002 — PYLON-low-voltage-V1.2
  • 003 — Growatt BMS CAN-Bus-protocol-low-voltage_Rev_05
  • 004 — Victron_CANbus_BMS_protocol_20170717
  • 005 — MEGAREVO_Hybrid_BMSCAN_Protocol
  • 006 — JK BMS CAN Protocol (500K) V2.0
  • 007 — INVT BMS CAN Bus protocol V1.02
  • 008 — GoodWe LV BMS Protocol (EX/EM/S-BP/BP)
  • 009 — FSS-ConnectingBat-TI-en-10 | Version 1.0
  • 010 — MUST PV1800F-CAN communication Protocol.04.04
  • 011 — LuxpowerTek Battery CAN Protocol V01

CAN screenshot 3:

CAN protocol menu entries 000 through 006

CAN screenshot 4:

CAN protocol menu entries 007 through 011

Inverter brand not listed? First verify in the inverter's manual or with its manufacturer that the inverter supports the PYLON low-voltage RS485 protocol, including the required serial settings and wiring. Only if it does, select the matching PYLON_low_voltage_Protocol_RS485_V3.5 option (005 or 014 at 9600 baud, as appropriate for the inverter). Do not select it merely because a brand is absent from the menu, and do not substitute a CAN PYLON setting for an RS485 connection.

8. Example main and slave app settings

The app screenshots show these values for the illustrated setup. The main and slave units use different device addresses and UART2 values:

Setting Main unit Slave unit
Device Address 0 1
CAN Protocol No. 000 000
UART1 Protocol No. 015 015
UART2 value shown 21 001
UART3 Protocol No. 015 015

Main-unit app settings:

App settings shown for the PB-series main unit, including device address 0

Slave-unit app settings:

App settings shown for the PB-series slave unit, including device address 1

These values are transcribed from the supplied screenshots and are an example, not universal settings for every PB board or firmware. Check the exact product description and manual before changing configuration.

Frequently asked questions

What setup does this guide show?

It shows two 8S lithium battery groups connected in parallel, with the main unit on the left and the slave unit on the right.

What device addresses are shown?

The example screenshots show address 0 for the main unit and address 1 for the slave unit.

Are these protocol values correct for every PB setup?

No. The protocol values are transcribed from this specific example. Confirm the settings for your exact protection board, interface board, and firmware in the product description and manual.

Where can I find detailed wiring and parameter instructions?

Visit the Download Center and read the manual for your exact PB model before operation.

Wiring and setup reference

This article shows the completed two-pack, 8S-per-group example and its visible settings. For detailed protection-board and display wiring, port definitions, and parameter explanations, visit the Download Center and carefully read the manual for your exact PB model before operation.

For after-sales support, visit our Support page or contact us on WhatsApp.

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