Overview
DALY SMART BMS Detector of cable sequence & Active balancer of Li-battery pack is a cable-sequence detector and active balancer for 3~24S Li-ion/LifePO4 battery packs. It combines wire sequence detection, voltage measurement, and active equalization (energy transfer type active balancing) in one handheld instrument for battery testing, analysis, and maintenance.
Key Features
- Cable sequence detection: fast and efficient; supports one-step detection with a matching adapter.
- Active equalization: active equalization of 10A large current (equalizing current is settable).
- Display: 3.5 inch LCD screen; supports Chinese-English switching.
- Detection functions: equalizing current setting, single string voltage detection, wire sequence detection, total voltage detection, voltage difference detection, abnormal alarm.
- Automatic operation: automatic identification of batteries (3-24 series adaptation), automatic refresh of data, automatic stop equalization, long term self power supply (equipped with 18650 lithium battery; capable of working for 4–6 hours without external power supply).
- Protection features: high temperature protection (equipped with NTC; automatically stops working when temperature exceeds the limit), low voltage protection (stops working automatically when single string exceeds the limit voltage), reverse connection protection (wrong/reversed wiring triggers an alarm and prevents damage), short circuit protection (built-in fuse).
Specifications
| Product name | Detector of cable sequence & Active balancer of Li-battery pack |
| Compatible battery types | Li-ion / LifePO4 |
| Battery strings | Minimum: 3 string; Maximum: 24 string; Settable: Automatic |
| Active balance current | Minimum: 1 A; Typical: 1 A; Maximum: 10 A; Settable: Settable |
| Voltage range of single string balance | Minimum: 2.1 V; Maximum: 4.25 V |
| Voltage difference for starting balance | Minimum: 5 mV; Typical: 50 mV; Maximum: 3000 mV; Settable: Settable |
| Working voltage | Minimum: 3.0 V; Typical: 3.7 V; Maximum: 4.2 V |
| Static working current (built-in battery power supply) | Minimum: 270 mA; Typical: 300 mA; Maximum: 370 mA |
| Voltage measurement accuracy | Minimum: 10 mV; Typical: 15 mV; Maximum: 20 mV |
| Single string voltage sampling time | Minimum: 1 S; Typical: 3 S; Maximum: 5 S |
| Display refresh time | Minimum: 3 S; Typical: 5 S; Maximum: 7 S |
| Detection completed time of cable sequence | Minimum: 1 S; Typical: 3 S; Maximum: 5 S |
| Built-in battery working time | Minimum: 4 h; Typical: 5 h; Maximum: 6 h |
| Time for non-working state to shutdown | Minimum: 1 min; Typical: 15 min; Maximum: 1092 min; Settable: Settable |
| Strings of balancing at the same time | Minimum: 1 string |
| Dimensions | 200mm x 120mm x 40mm |
| National Patent No. | ZL 2021 2 3440756.2 |
Applications
- Power and energy storage batteries
- Online and offline detection, analysis, and maintenance of multiple series battery packs
- Suitable for battery manufacturers, battery distributors, battery repair shops, and DIY users
Important Notes
- The default equalizing current is 1A; the balance current can be set between 1–10A.
- If using the terminal block, the equalizing current should not exceed 3A.
- The equilibrium opening voltage difference can be kept as default or set as required, with a setting range greater than or equal to 5mV.
- The balance switch is turned off by default; turn it on first to start active equalization.
- If voltage difference is caused by irreversible reasons (such as cell damage, excessive internal resistance, or water ingress), this product cannot repair the battery.
For selection guidance or after-sales support, contact https://tsolar.top/ or email service@tsolar.top.
Details
Combine wire-sequence checking, voltage measurement, and energy-transfer active balancing in one handheld tester for 3–24S battery packs.
Suitable for production lines, energy storage battery testing, service centers, and DIY maintenance workflows.
Reduce bench clutter by replacing multiple tools with one instrument for checking wiring order and balancing cells.
Active equalization helps bring cell voltages closer together to support safer, more consistent pack performance.
A quick reference for physical size and core operating parameters, including series range and balancing current settings.
Multiple test and setup functions are accessible from the device interface, including per-cell voltage, total voltage, and alarms.
Use the matching adapter board for fast, one-step wiring sequence checks with clear per-cell voltage readouts.
Balancing current can be adjusted; use appropriate cables and connections when setting higher equalizing current levels.
Built-in safeguards help protect the tool and battery pack during testing, including reverse connection alarms and fuse protection.
Automatic identification and real-time refresh make routine checks easier, with portable power from a built-in 18650 battery.
Parameters can be set on the host device or through a computer connection via Type‑C USB.
Designed for bench or field use with rear heat-dissipation vents and a fold-out stand for convenient placement.
Everything needed to get started is included, with the host unit, adapter board, cables, battery, and storage packaging.
DALY wiring guidance maps each balance lead (B0–B8) from the unit to the corresponding battery pack terminals, with an optional adapter board connection.
A detailed tutorial link and customer service prompt are provided for setup and troubleshooting support.
DALY focuses on making green energy safer and smarter.
DALY Smart BMS is backed by a company profile listing 130+ export regions, 100+ R&D personnel, 100+ patents, and ISO9001.
DALY Smart BMS is backed by technical support and an R&D team focused on electronics and testing.
Daly Smart BMS manufacturing is presented with a 20,000-square-meter anti-static workshop, 13 production lines, and 10,000,000+ annual output.
The FAQ outlines delivery time expectations, logistics options, warranty information, and notes about product data.
