Overview
This active balancer lithium battery equalizer (4S / 8S / 16S) uses a capacitive energy transfer method. After the equalization board is connected to the battery, it starts equalization work to help reduce cell-to-cell voltage difference and improve pack consistency. It uses original brand new ultra-low internal resistance MOS and a 20Z copper thickness PCB. Equalization current is 0–5.5A (lab test data). The wiring position of the sleep switch is reserved.
Key Features
- Active equalization board: “Choose a safer active equalization board”
- Stable / Smarter / Safer (as stated on the product material)
- Suitable for lithium battery
- Repair the differential pressure (reduce voltage differential slowly)
- Recovery capacity / Complex capacity equalization
- Equalize the current
- Temperature protection (also described as “current temperature protection”)
- Undervoltage protection
- Automatic sleep
- Can connect any type of BMS; customer don’t need to welding wires on battery twice
- Plug/socket support statement: “You can give us plug sample of BMS, we also can supply socket solution.”
Specifications
| Product type | Active balancer / battery equalizer (capacitive energy transfer) |
| Supported series options | 4S / 8S / 16S |
| Model options shown | AB-4S5A, AB-8S5A, AB-16S5A |
| Equalization current | 0–5.5A (lab test data) |
| PCB copper thickness | 20Z |
| MOSFET | Ultra-low internal resistance MOS |
| Sleep switch | Wiring position reserved |
| Board marking shown (example) | PH12-4S-M v1.0 |
| Other markings shown | QC PASSED; ONE-SOLAR Active Balancer |
Wiring Reference
- 4S Capacitive Wiring Diagram: B1, B2, B3, B4
- 8S Capacitive Wiring Diagram: B1 through B8
- 16S Capacitive Wiring Diagram: B1 through B16
For selection help (4S/8S/16S) or plug/socket matching questions, contact customer support at https://tsolar.top/ or service@tsolar.top.
Details
Capacitive energy transfer balancing starts automatically after wiring to help reduce cell-to-cell voltage differences.
Plug-and-socket connections support integration with many BMS setups without rewiring the battery pack twice.
Choose the 4S, 8S, or 16S version to match your battery series count.
Follow the B1-to-Bn lead order carefully for 4S or 8S packs before powering up.
For 16S packs, confirm each cell tap from B1 through B16 is connected to the matching position.
Built-in temperature and undervoltage protection plus automatic sleep help support safer long-term balancing.
