Overview
JKBMS BD6A24S12P is an active balance smart BMS (battery management system) for LiFePO4, Li-ion, and LTO battery packs, featuring 0.6A active balancing and 120A continuous charge/discharge capability. It is designed for 7S to 24S battery string configurations (chemistry-dependent) and includes built-in Bluetooth for monitoring on Android and iOS.
Key Features
- Active Balance (Full State On): 600mA (0.6A) balance current
- Battery strings supported: Li-ion 7S-24S; LiFePO4 8S-24S; LTO 12S-24S
- Continuous current: 120A (continuous charge current 120A; continuous discharge current 120A)
- Peak discharge current (MAX 2 min): 250A
- Built-in Bluetooth: supports Android / iOS phone
- Communication: RS485 (default); CANBUS/HEAT (customized)
- Same port / common port wiring: same port wiring method; wiring output: Common Port
- Single cell voltage dropout detection: supported
- Protections listed: over charge protection, over discharge protection, over current protection, short circuit protection, all-in protection (cable drop/poor contact), over temp protection
- Bluetooth app notes: download the specified Bluetooth application and activate the BMS; open the Bluetooth application, find the relevant serial number, then check data
Specifications
| Model | BD6A24S12P |
| 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 |
| Power supply mode | The battery pack is self-powered |
| Continuous charge current | 120A |
| Continuous discharge current | 120A |
| Maximum discharge current (MAX 2 min) | 250A |
| Over charge protection current (ADJ) | 10-120A |
| Conductive resistance in main circuit | 0.65mΩ |
| Single cell voltage detection range | 0-5V; error <10mV over full operating range; typical error value <5mV |
| Single cell voltage range | 1-5V |
| Voltage acquisition accuracy | ±5mV |
| Total voltage detection range | 0-100V; <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 accuracy | Error range is less than 8% |
| Total Cycle AH | Cumulative value is 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 |
| Short circuit protection | YES / Support |
| Temperature detection | -40~125°C |
| Quantity of temperature detection | 3Pcs |
| Temp protection | YES |
| Bluetooth function | Support for Android & IOS phone |
| Other interfaces (default) | RS485 |
| Other interfaces (customized) | CANBUS/HEAT |
| Operating power consumption | <5mA (without communication) / 15mA (485/CAN) |
| Standby power consumption | <2mA |
| Operating temperature | -40~85°C |
| Storing temperature | -40~95°C |
| Size | 162*102*20mm |
| Wiring output | Common Port |
Operating Modes (Smart Energy Working Mode Switching)
- Storage Mode: in transportation/storage/offline or wireless transmission off mode; the BMS is in storage mode and does not consume battery pack current
- Normal Working Mode: when the charger is inserted in storage mode and off mode, the BMS immediately returns to normal working mode; protection, equalization, and communication functions return to normal working
- Standby Mode: when the battery pack is in a static state (no charge/discharge current and no equilibrium current), the BMS automatically enters standby state after the set time (1-30 days can be set) is exceeded
- Shutdown: the BMS has an automatic shutdown voltage and automatically shuts down when a cell falls below the shutdown voltage
Applications
- LiFePO4 / Li-ion / LTO battery packs requiring active balancing and smart monitoring
- Battery packs from 7S up to 24S (chemistry-dependent) with up to 120A continuous current requirements
For wiring, configuration, and after-sales support for this active balance smart BMS, contact https://tsolar.top/ or email service@tsolar.top.
Details
Active-balancing smart BMS designs are available across multiple string counts; choose the model that matches your pack voltage and current needs.
Higher-current and expanded communication options are offered on certain versions, including RS485 by default and optional CANBUS/heat features.
A compact layered construction houses the control board, balancing circuitry, and connectors in a protected case.
Dedicated ports simplify integration with RS485/CAN communication, an external display, and optional heating control (model-dependent).
Built-in Bluetooth lets the BMS report total voltage, cell voltages, balance status, and temperature data to a phone app.
Use the app to scan and connect, select battery chemistry, and review per-cell voltage and wiring resistance readings.
Multiple safety protections help guard the pack against overcharge/overdischarge, overcurrent, short circuit, poor contact, and overheating.
Smart power modes support storage, standby, and automatic shutdown behavior to reduce drain when the battery is unused.
Check the model comparison table to confirm supported series strings (S count), balancing current, continuous current rating, and interface options.
