JBD ZP10S036-T-K V1.1 8S 40A LiFePO4 Battery Protection BMS with Same-Port Charging and Cell Balancing

1. Product Overview

The Jiabaida JBD ZP10S036-T-K V1.1 is a 40A battery-management system designed for eight LiFePO₄ cells or parallel cell groups connected in series.

An 8S LiFePO₄ battery pack has a nominal voltage of approximately 25.6V and reaches 29.2V when fully charged.

This BMS uses a same-port design, allowing the charger and load to share the same controlled negative connection. It also supports cell balancing to help maintain similar voltage levels across the eight series groups.

The board includes metal heat-dissipation plates, high-current connection points and a balance-wire harness, making it suitable for assembling or repairing compatible 24V-class LiFePO₄ battery packs.

2. Technical Specifications

3. Connection Points

Because this is a same-port BMS, charging and discharging normally use the same controlled negative terminal marked C−.

Always confirm the connection diagram for this exact model before installation. Do not rely only on the physical position of the pads or terminals.

4. Protection Functions

The JBD ZP10S036-T-K is intended to provide important protection functions for a compatible 8S LiFePO₄ battery pack, including:

• Cell overcharge protection
• Cell over-discharge protection
• Charge overcurrent protection
• Discharge overcurrent protection
• Short-circuit protection
• Cell-voltage monitoring
• Cell balancing
• Charge and discharge control through onboard MOSFETs
• Temperature-related protection when the correct sensor is installed and supported

Exact protection thresholds, balancing current, delay times and recovery conditions should be confirmed from the supplier’s configuration or technical documentation before installation.

5. Suitable Applications

This BMS may be used with compatible 8S LiFePO₄ battery packs for:

• 24V lithium battery packs
• Solar-energy storage
• UPS and backup-power systems
• Portable power equipment
• Robotics projects
• Electric mobility accessories
• Battery-powered instruments
• DIY battery packs
• Battery replacement and repair work
• Low- and medium-power equipment within the verified current limit

The connected equipment’s continuous and starting current must remain within the safe capability of the BMS, cells, wiring and connectors.

6. Battery and Charger Compatibility

Use this BMS only when:

• The battery contains exactly eight LiFePO₄ series groups.
• Each cell or parallel group has a nominal voltage of 3.2V.
• Each cell has a maximum charging voltage of 3.65V.
• The charger is designed for an 8S LiFePO₄ battery.
• The charger’s maximum output voltage does not exceed 29.2V.
• All eight cell groups are at closely matched voltages before connection.
• The equipment’s continuous and peak current remain within the verified capability of the BMS and battery cells.

Do not use this BMS with 8S lithium-ion or NMC cells charged to 4.2V per cell. Their voltage thresholds differ from those required for LiFePO₄ batteries.

7. Installation Guidance

• Measure the voltage of all eight cell groups before installation.
• Arrange the cells as an 8S battery pack.
• Connect B− to the battery-pack negative terminal.
• Connect the balance wires sequentially from the lowest cell group to the highest.
• Verify every intermediate voltage with a multimeter before inserting the balance connector.
• Connect the common charger/load negative cable to C−.
• Connect the charger and load positive directly to the battery-pack positive terminal unless the official wiring diagram states otherwise.
• Use wires and connectors rated for the expected operating current.
• Keep high-current connections short and secure.
• Insulate the BMS and every exposed electrical connection.
• Mount the board where its metal parts cannot contact battery terminals, nickel strips or the enclosure.
• Provide suitable ventilation and heat dissipation.
• Do not connect the balance harness until the wire order and voltages have been checked.

8. Important Current-Rating Note

The 40A BMS rating does not increase the current capability of the battery cells.

The safe current of the completed battery pack is determined by the lowest-rated component among:

• BMS
• LiFePO₄ cells
• Busbars or nickel strips
• Output cables
• Connectors
• Fuse
• Charger
• Connected equipment

For equipment with motors, pumps or compressors, verify the starting or surge current. A load may briefly draw much more current during startup than during normal operation.

9. Package Contents

• 1 × JBD ZP10S036-T-K V1.1 8S 40A LiFePO₄ BMS
• 1 × Balance-wire harness, as shown in the product image

Only the components visible or specifically mentioned in the listing are included.

10. Safety Information

• Incorrect balance-wire sequencing can permanently damage the BMS.
• Never reverse battery polarity.
• Do not short B−, C− or the battery-positive terminal.
• Use only a compatible 29.2V 8S LiFePO₄ charger.
• Do not exceed the verified current capability of the BMS or battery cells.
• Install a correctly rated fuse near the battery-pack positive terminal.
• Keep the board away from water, conductive dust and loose metal objects.
• Do not use a burnt, cracked, corroded or unusually hot BMS.
• Installation should be performed by a person familiar with lithium-battery wiring and safety.