Overview
The JKBMS B2A8S30P is an active-balance smart BMS for 3S to 8S battery packs, supporting Li-ion, LiFePO4, and LTO chemistries. It provides 2A active balancing (full state on), 300A continuous current capability, built-in Bluetooth for Android/iOS, and same-port wiring for charge/discharge connections.
Key Features
- Battery strings: 3S to 8S
- Active balancing: 2000mA (2A), Active Balance (Full State On)
- Continuous current: 300A
- Battery pack self-powered
- Built-in Bluetooth; supports Android / iOS phone
- Short-circuit protection: supported
- Supports single-cell voltage dropout detection
- Interfaces/labels shown: CAN/RS485, GPS, temperature line; terminals/labels shown include B+, B-, P-, C-
- Compatible accessory shown: JIKONG BMS parallel module JK-BLMK-5A (for JK-B2A8S30P), supporting Li-ion/LiFePO4/LTO (module wiring diagrams shown)
Specifications
| Model | B2A8S30P |
| Supported battery strings | 3S to 8S |
| Supported chemistries | Li-ion / LiFePO4 / LTO |
| Continuous current | 300A |
| Wiring method | Same port |
| Balance current | 2000mA |
| Balancing type | Active Balance (Full State On) |
| Single-cell voltage detection range | 0-5V |
| Single-cell voltage detection error | <10mV over full operating range; typical <5mV |
| Total voltage detection range | 0-100V |
| Total voltage detection accuracy | <0.5% FSR (FSR = full scale) |
| Current sense shunt range | -150A to 300A |
| Current sense shunt error | <0.5% FSR |
| SoC estimation accuracy | Error <8% (operating conditions) |
| Battery remaining capacity accuracy | Error range <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 |
| Operating temperature | -40 to 85°C |
| Storing temperature | -40 to 95°C |
| Temperature detection | -40 to 125°C |
| Bluetooth | Built-in; Android / iOS support |
Applications
- 3S-8S LiFePO4 battery packs with active balancing
- 3S-8S Li-ion battery packs with monitoring and protection
- 3S-8S LTO battery packs for energy storage and other DC power systems
For pre-sales compatibility questions or support, contact https://tsolar.top/ or email service@tsolar.top.
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