Overview
The ANT BMS Smart BMS is a battery protection board for 17S to 24S battery packs (52V–88V range commonly used), suitable for Li-ion, LiFePO4, and LTO chemistries. It integrates Bluetooth (Android/iOS) monitoring and supports the same-port wiring method, with multiple current options from 50A up to 420A continuous (model-dependent).
Key Features
- Series support: 17S to 24S
- Power supply mode: Battery pack self-powered and 20–100V DC input
- Cell voltage detection: 0–5V, error <20mV over full operating range; typical error value <10mV
- Single cell voltage dropout detection: Supported
- Balancing: 100mA passive balance current
- Short circuit protection: Supported (adjustable)
- Bluetooth: Built-in; supports Android / IOS phone
- Temperature detection: -40 to 125°C
- Total voltage detection: 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: Less than 8%
- Total Cycle AH: Cumulative value is half of the charge/discharge value
- Operating power consumption: <4mA (without communication) / 15mA (485/CAN)
- Standby power consumption: <2mA
- Operating temperature: -40 to 85°C
- Storage temperature: -40 to 95°C
Specifications
Electrical (by variant)
| Variant (17S–24S) | Continuous Current | Maximum Discharge / Peak | Peak Duration |
|---|---|---|---|
| Option | 50A | 125A | Peak max 10 seconds |
| Option | 100A | 250A | Peak max 10 seconds |
| Option | 130A | 325A | Peak max 10 seconds |
| Option | 170A | 425A | Peak max 10 seconds |
| Option | 220A | 550A | Peak max 10 seconds |
| Option | 340A | 850A | Peak max 10 seconds |
| Option | 380A | 950A | Peak max 10 seconds |
| Option | 400A | 1000A | Peak max 10 seconds |
| Option | 420A | 1050A | Peak max 10 seconds |
Mechanical (selected variants)
Note: The data tolerance range is ±1mm. Some BMS support customized positioning holes.
| Variant Label | Width | Height | Total Height | Thickness | Wire Length | Other Markings |
|---|---|---|---|---|---|---|
| 17S–24S 380A continuous (peak 950A) | 9.1cm | 18.4cm | - | 1.6cm | - | - |
| 17S–24S 340A continuous (peak 850A) | 9cm (top), 7.3cm (bottom) | 11.1cm | 16.1cm | 1.6cm | 15cm | - |
| 17S–24S 220A continuous (peak 550A) | 7.3cm | 7.6cm | 12.6cm | 1.6cm | 15cm | - |
| 17S–24S 170A continuous (peak 425A) | 7.3cm | 11.1cm | 16.1cm | 1.6cm | 15cm | - |
| 17S–24S 130A continuous (peak 325A) | 9cm (top), 7.3cm (bottom) | 8.56cm | 13.6cm | 1.6cm | 15cm | - |
| 17S–24S 100A continuous (peak 250A) | 9.1cm | 10.1cm | - | 1.6cm | 10cm | Hole diameter 3.5cm; Positioning hole 11.1cm |
| 17S–24S 50A continuous (peak 125A) | 9.1cm | 10.1cm | - | 1.6cm | 10cm | Hole diameter 3.5cm; Positioning hole 11.1cm |
Applications
- 17S–24S Li-ion, LiFePO4, or LTO battery packs requiring smart monitoring and protection
- Battery systems that need Bluetooth monitoring via Android / IOS phone
- Projects requiring RS485/CAN/Modbus communication (where supported/configured)
For selection guidance (17S–24S and current rating) and customization requests such as positioning holes or RS485/CAN/Modbus integration, contact customer support at https://tsolar.top/ or service@tsolar.top.
Details

Built-in Bluetooth monitoring and protections for 17S–24S battery packs, with support for Li-ion, LiFePO4, and LTO chemistries.

Choose the continuous current rating that matches your build, with variant sizing and wiring layouts summarized for quick comparison.
