🔑 Key Features:

✔ 4S Configuration – Supports 14.8V nominal (16.8V max) Li-ion/LiPo batteries ✔ High Current Capacity – 40A continuous (60A peak) discharge/charge current ✔ Multi-Protection – Overcharge, over-discharge, over-current, short-circuit, and temperature protection ✔ Balancing Function – Passive cell balancing for uniform charging ✔ Low Power Consumption – <50μA in standby mode ✔ Durable Design – FR-4 PCB with 2oz copper layers for heat dissipation

📌 Applications:

• E-Bikes & Scooters – 48V battery packs (with multiple modules)

• RC Vehicles – High-power drone/plane batteries

• Solar Storage – DIY power wall systems

• Power Tools – Cordless tool battery packs

• Backup Power – UPS and portable generators

📦 Package Includes:

• 1 × 4S 40A BMS Module

• (Optional) Pre-soldered wires or connectors

⚙ Technical Specifications:

🔧 Wiring Guide:

1. Connect Cells:

   • B0 (GND) → Cell 1 negative

   • B1 → Cell 1 positive / Cell 2 negative

   • B2 → Cell 2 positive / Cell 3 negative

   • B3 → Cell 3 positive / Cell 4 negative

   • B4 → Cell 4 positive

2. Load/Charge:

   • P+ → Battery pack positive (output/charge)

   • P- → Battery pack negative (output/charge)

Note: Always verify voltage with a multimeter before first use!