Go2 Battery

The Unitree Go2 robot uses a specialized battery system with two versions: the BT2‑05 (standard) and BT2‑06 (long‑endurance). Both are designed with Unitree’s advanced Battery Management System (BMS) for safety, fast charging, and long operation times.

🔋 Go2 Battery Specifications

Models:
- BT2‑05 (Standard)
- BT2‑06 (Long‑endurance)
Size: 120 mm × 80 mm × 182 mm
Voltage:
- BT2‑05: 29.6 V DC
- BT2‑06: 28.8 V DC
Battery Capacity: Not publicly disclosed, but optimized for extended runtime.
Endurance:
- Standard version supports typical inspection and mobility tasks.
- Long‑endurance version provides significantly longer operation time.
Charging Options:
- Standard charger (portable, stable power)
- Fast charger (rapid charging capability)

⚡ Safety & Protection Features

The Go2 battery integrates eight layers of protection:

Balanced charge protection
Overcharge protection
Over‑discharge protection
Short circuit protection
Charging current protection
Charging temperature protection
Battery storage & self‑discharge protection
Load detection protection

📊 Comparison: BT2‑05 vs. BT2‑06

Feature	BT2‑05 (Standard)	BT2‑06 (Long‑endurance)
Voltage	29.6 V DC	28.8 V DC
Size	Same (120×80×182)	Same (120×80×182)
Runtime	Standard	Extended (longer use)
Best Use Case	Regular tasks	Long missions/inspections

✅ Key Takeaways

BT2‑05 is ideal for everyday use and shorter missions.
BT2‑06 is better for extended inspections or fieldwork where charging opportunities are limited.
Both versions are supported by Unitree’s fast charger for quick turnaround.