Overview
JKBMS B1A24S15P is an active balance BMS for LiFePO4, Li-ion, and LTO battery packs, featuring 1A active balancing and 150A continuous charge/discharge capability. It supports Bluetooth (built-in) for Android/iOS monitoring and is designed for common-port (same-port) wiring in multi-series battery systems.
Key Features
- Battery string support: Li-ion 7S-24S; LiFePO4 8S-24S; LTO 12S-24S
- Active balance: Active Balance (Full State On), balance current 1000mA (1A)
- Current capability: 150A continuous charge current; 150A continuous discharge current; 300A maximum discharge current (MAX 2min)
- Bluetooth monitoring: built-in Bluetooth, supports Android / iOS phone; activate via the specified Bluetooth application, then select the relevant serial number to view data
- Interfaces: RS485 (default); CANBUS/HEAT (customized)
- Protections: over charge protection, over discharge protection, over current protection, short circuit protection, all-in protection (cable drop/poor contact), over temperature protection
- Power supply mode: battery pack self-powered
- Coulomb counter: YES
Specifications
| Model | B1A24S15P |
| Balance method | Active Balance (Full State On) |
| Balance current | 1A (1000mA) |
| 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 | 150A |
| Continuous discharge current | 150A |
| Maximum discharge current | 300A (MAX 2min) |
| Over charge protection current (ADJ) | 10-150A |
| Conductive resistance in main circuit | 0.47mΩ |
| Single cell voltage range | 1-5V |
| Single cell voltage detection range | 0-5V; error <10mV over full operating range; typical error <5mV |
| Voltage acquisition accuracy | ±5mV |
| Support single cell voltage dropout detection | YES |
| Total voltage detection range | 0-100V; <0.5% FSR (FSR = full scale) |
| Current sense shunt | -150A to 300A; error <0.5% FSR |
| 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 |
| Temperature detection (range) | -40 to 125°C |
| Quantity of temperature detection | 3Pcs |
| Operating temperature | -40 to 85°C |
| Storing temperature | -40 to 95°C |
| SoC estimation accuracy | Error <8% (operating conditions) |
| Battery remaining capacity | Error range is less than 8% |
| Total Cycle AH cumulative value | Half of the charge/discharge value |
| Operating power consumption | <5mA (without communication) / 15mA (485/CAN) |
| Standby power consumption | <2mA |
| Bluetooth function | Support for Android & iOS phone (built-in) |
| Other interfaces (default) | RS485 |
| Other interfaces (customized) | CANBUS/HEAT |
| Size | 162*102*20mm |
Connector Labels (as provided)
- CANBUS (need customization): pins labeled GND, CAN_H, CAN_L
- RS485 (by default): pins labeled GND, RX, TX, VCC
- LCD (by default): pins labeled K-, K+, GND, B, A, VCC
- Heat function (need customization)
- Additional connector label present: GPS
Working Mode Switching (as provided)
- Storage Mode: for transportation/storage/offline or wireless transmission off mode; does not consume battery pack current
- Normal Working Mode: charging activates return from storage/off mode; protection, equalization and communication functions return to normal
- Shutdown: automatic shutdown voltage; BMS automatically shuts down when a cell falls below the shutdown voltage
- Standby Mode: when static (no charge/discharge current and no equilibrium current), enters standby after a set time (1-30 days can be set)
Applications
- Multi-series LiFePO4 / Li-ion / LTO battery packs requiring active balancing and smart monitoring
- Battery systems where common-port (same-port) charge/discharge wiring is required
For installation and configuration support, contact service@tsolar.top or visit https://tsolar.top/.
Series Reference Text Found in Provided Materials
- JK-BD6A17S6P: Active Balance Current 0.6A; adapt battery strings 10S-17S (LTO), 7S-17S (Li-ion), 8S-17S (LiFePO4); continuous discharge/charge current 60A; peak current 100A; battery strings 03-17S
- JK-B2A20S20P-H-C: Active Balance Current 2A; adapt battery strings 10S-20S (LTO), 7S-20S (Li-ion), 8S-20S (LiFePO4); continuous discharge/charge current 200A; support batteries heating function / built-in heating chip; support RS485 function default / built-in CANBUS chip
Details
