The 1.2A-4S is a compact and efficient battery spot welder designed for assembling small lithium battery packs. It delivers precise, stable welding currents suitable for 1.2 Ah cells in 4-series configurations.
Supports 4–24 strings for different battery pack equalization.
1.2A active equalization with 24-hour continuous detection, zero energy loss.
Waterproof, dustproof, anti-leak paint enhances safety and reliability.
Dual-row input ports (2.0 & 2.54) for various battery interfaces.
Li-ion
LiFePO4
Li-ion pack
Power tools| Startup equalization voltage | $\ge$0.1V |
| Balanced mode | Adjacent energy transfer |
| Equalized conversion efficiency | $\ge$92% |
| Unit overvoltage protection value | 2.3A($\pm$0.2A) |
| Net Weight (Dimensions) | 22$\times$66mm |
| Applicable battery | Li-ion/LiFePO4 |
| Applicable battery string number | 2~4S |
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