Feature Highlights: 1. Wide Compatibility – Works with 2.2V–4.5V Li-ion, LiPo, LiFePO4, and LTO batteries. A universal solution for 1S to 4S setups. 2. Smart Auto-Balancing – Starts balancing when cell voltage difference exceeds 0.1V and stops at ≤30mV. Keeps your battery pack evenly charged. 3. High-Current Balancing – Built-in upgraded low-resistance MOS supports balance currents up to 1.2A for faster, more efficient balancing. 4. Energy Transfer Design – Uses inductor-based energy transfer to move charge between cells, minimizing waste and improving balance accuracy. 5. Low Power & Ready to Use – Ultra-low standby consumption (≤20µA). Includes balance indicator and comes with 40cm pure copper 22AWG wires for easy installation. Product Details: This active balancer ensures your multi-cell battery pack stays in top condition. It automatically balances cells when voltage differences arise, extending battery life and improving performance. The high-precision dedicated balance IC and energy transfer circuit provide reliable, efficient balancing with voltage accuracy within 30mV. Its compact, durable PC+metal housing is easy to install and fits neatly into your battery setup. Specifications: - Working Voltage: 2.2V–4.5V per cell - Compatible Battery Types: Li-ion, LiPo, LiFePO4, LTO - Supported Configuration: 1S–4S - Balance Start Voltage Difference: >0.1V - Balance Stop Voltage Difference: ≤30mV - Max Balance Current: 1.2A - Standby Current: ≤20µA - Wiring: 40cm 22AWG pure copper cable with terminals - Main Color: Black - Material: PC + Metal Package Includes: 1 × Active Balancer 1 × Cable Set Note: Slight color variations may occur due to lighting and display differences. Allowable measurement tolerance: ±1–3cm.