Overview
JKBMS BD6A24S8P is an active balance smart BMS (battery management system) for LiFePO4, Li-ion, and LTO battery packs from 7S up to 24S. It supports 0.6A active balancing (Full State On), 80A continuous charge/discharge, built-in Bluetooth monitoring for Android/iOS, and RS485 communication (CANBUS available as a customized interface).
Key Features
- Battery strings support: Li-ion 7S-24S; LiFePO4 8S-24S; LTO 12S-24S
- Active balancing: 0.6A (600mA), Active Balance (Full State On)
- Current capability: 80A continuous charge current; 80A continuous discharge current; maximum discharge current 150A (MAX 2min)
- Bluetooth: Built-in; supports Android / iOS phone. Download the specified Bluetooth application, activate the BMS, then select the relevant serial number to view data.
- Communication: RS485 (default); CANBUS (customized)
- Protection & monitoring: over charge, over discharge, over current, short circuit, cable drop/poor contact (“all-in” protection), over temperature
- Modes: Storage Mode; Normal Working Mode; Standby Mode; Shutdown (automatic shutdown when a cell falls below the shutdown voltage; Standby time can be set 1-30 days)
- Power supply mode: battery pack self-powered
- Wiring: same port / common port
- Voltage dropout detection: supports single cell voltage dropout detection
Specifications
| Model | BD6A24S8P |
| Balance method | Active Balance (Full State On) |
| Balance current | 0.6A (600mA) |
| Number of battery strings (Li-ion) | 7S-24S |
| Number of battery strings (LiFePO4) | 8S-24S |
| Number of battery strings (LTO) | 12S-24S |
| Wiring output / method | Common Port / Same Port |
| Continuous charge current | 80A |
| Continuous discharge current | 80A |
| Maximum discharge current (MAX 2min) | 150A |
| Over charge protection current (ADJ) | 10-80A |
| Conductive resistance in main circuit | 1.2mΩ |
| Single cell voltage range | 1-5V |
| Single cell voltage detection range | 0-5V |
| Single cell voltage detection error | <10mV (full operating range), typical <5mV |
| Voltage acquisition accuracy | ±5mV |
| Total voltage detection range | 0-100V |
| Total voltage detection accuracy | <0.5%FSR (FSR = full scale) |
| Current sense shunt | -150A~300A, Error <0.5%FSR |
| SoC estimation accuracy | Error <8% (operating conditions) |
| Battery remaining capacity error | <8% |
| Total Cycle AH cumulative value | Half of the charge/discharge value |
| Over charge protection voltage | 1.2-4.35V Adjustable |
| Over charge release voltage | 1.2-4.35V Adjustable |
| Over discharge protection voltage | 1.2-4.35V Adjustable |
| Over discharge release voltage | 1.2-4.35V Adjustable |
| Over current detect delay | 2~120S Adjustable |
| Other interfaces (default) | RS485 |
| Other interfaces (customized) | CANBUS |
| Bluetooth function | Support for Android & iOS phone |
| Built-in Bluetooth module | YES |
| Coulomb counter | YES |
| Temperature sensors | 3 pcs |
| Temperature detection | -40~125°C |
| Operating temperature | -40~85°C |
| Storing temperature | -40~95°C |
| Operating power consumption | <5mA (without communication) / 15mA (485/CAN) |
| Standby power consumption | <2mA |
| Short circuit protection | YES |
| Temp protection | YES |
| Size | 133*81*18mm |
Communication Port Notes (as labeled)
- CANBUS (need customization): GND, CAN_H, CAN_L
- RS485 (by default): GND, RX, TX, VCC
- LCD (by default): K-, K+, GND, B, A, VCC
- Heat function (need customization)
Applications
- DIY and replacement BMS for LiFePO4, Li-ion, or LTO battery packs within the supported 7S-24S range (chemistry-dependent)
- Energy storage battery packs requiring active balancing, Bluetooth monitoring, and RS485/CAN communication options
For wiring, app setup, or configuration support, contact https://tsolar.top/ or email service@tsolar.top.
Details
Active-balancing smart BMS hardware in the JKBMS range, built for high-current battery packs and continuous balancing.
Multiple string-count and current options are available across the JKBMS lineup for Li-ion and LiFePO4 packs.
Layered construction highlights the control board, power section, and connector layout inside the enclosure.
Choose RS485 by default, with CANBUS and other interfaces available as customization depending on the build.
Bluetooth monitoring in the mobile app provides live pack data plus per-cell voltage tracking for quick health checks.
Connection diagnostics and status screens help verify wiring quality and monitor balance behavior during use.
Comprehensive protection coverage includes over/under-voltage, over-current, short-circuit, poor contact, and over-temperature safeguards.
Energy modes support storage, standby, and automatic shutdown behavior to reduce pack drain when the system is idle.
Use the specification matrix to match the right series/strings, balancing current, and communication interface to your pack.
