Overview
ANTBMS 4S smart battery protection board (BMS) for 12V-class battery packs using LiFePO4, Li-ion, or LTO chemistries. Built-in Bluetooth supports Android and iOS apps. Current options include 110A/275A peak, 130A/325A peak, 170A/425A peak, 340A/850A peak, 400A/1000A peak, and 420A/1050A peak (peak up to max 10s, depending on model).
Key Features
- Number of battery strings: 4S
- Built-in Bluetooth; supports Android / iOS phone apps
- Power supply mode: battery pack self-powered and 8-16V DC input
- Single cell voltage detection range: 0-5V; error <20mV over full operating range; typical error value <10mV
- Supports single cell voltage dropout detection
- Passive balancing; balance current: 100mA
- Wiring method: same port
- Short circuit protection: supported
- Total voltage detection range: 0-100V; <0.5%FSR (FSR = full scale)
- Current sense shunt: -150A to 300A; error <0.5%FSR
- SoC estimation accuracy: error <8% (operating conditions)
- Battery remaining capacity error range: <8%
- Operating power consumption: <5mA (without communication) / 15mA (485/CAN)
- Standby power consumption: <2mA
Specifications
| Battery strings | 4S |
| Power supply mode | Battery pack self-powered and 8-16V DC input |
| Single cell voltage detection range | 0-5V |
| Single cell voltage detection error | <20mV over full operating range; typical <10mV |
| Single cell voltage dropout detection | Supported |
| Balance type / current | Passive balance / 100mA |
| Wiring method | Same port |
| Short circuit protection | Supported |
| Bluetooth | Built-in; Android / iOS phone support |
| Temperature detection | -40 to 125°C |
| Total voltage detection range | 0-100V |
| Total voltage detection accuracy | <0.5%FSR (FSR = full scale) |
| Current sense shunt | -150A to 300A |
| Current sense accuracy | 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 |
Model Options (Built-in Bluetooth)
| Model | Continuous Current | Peak Current | Peak Duration | Size (mm) | Dimensions Shown (cm) |
|---|---|---|---|---|---|
| ANTBMS -04ZNN-110A | 110A | 275A | Max 10s | 128*75*16mm | 12.75cm x 7.44cm |
| ANTBMS -04ZNN-130A | 130A | 325A | Max 10s | 136*75*16mm | 13.63cm x 7.44cm |
| ANTBMS -04ZNN-170A | 170A | 425A | Max 10s | 162*75*16mm | 16.15cm x 7.44cm |
| ANTBMS -04ZNN-340A | 340A | 850A | Max 10s | 162*92*16mm | 16.2cm x 9.2cm |
| ANTBMS -04ZNN-400A | 400A | 1000A | Max 10s | 180*90*16mm | 18cm x 9cm |
| ANTBMS -04ZNN-420A | 420A | 1050A | Max 10s | 207*91*16mm | 20.7cm x 9.1cm |
Wiring & Connection Notes
- The cables of different brands of BMS are different; matching cables must be used.
- Wiring must start from B- to B+ and be connected in sequence.
- Measure the voltage of each battery string with a multimeter to ensure the correct line sequence.
- Connect B- of the BMS to the total negative of the battery before plugging the sampling cable into the BMS to avoid damage.
HY2.0-8Pin Definition
- L: CAN-L
- H: CAN-H
- B: RX TTL/485
- A: TX TTL/485
- N: -
- P: +
- S: SW+
- V: SW-
For wiring confirmation or selection help, contact customer support at https://tsolar.top/ or service@tsolar.top.
Applications
- 4S (12V-class) LiFePO4, Li-ion, or LTO battery packs
- Battery packs requiring smart monitoring via Bluetooth app and same-port wiring
Details
Connect the charger, load, and balance/sense leads using the same-port wiring layout for a 4S 12V-class pack.
Choose the continuous/peak current option and matching board size that fits your 4S LiFePO4, Li-ion, or LTO battery build.
