Unitree Go2 Battery
Genuine Unitree Go2 battery — Standard 8000mAh (236.8Wh) version with self-developed BMS, IEC 62133-2 certified.
- Unitree Go2 Air
- Unitree Go2 Pro
- Unitree Go2 X
- Unitree Go2 EDU
About the Unitree Go2 Battery
The Unitree Go2 battery is the official replacement pack for the Go2 quadruped, available in two versions: the Standard pack (8000mAh / 236.8Wh, BT2-05) that ships with every Go2 Air, Pro and X, and the Long Range pack (15000mAh / 432Wh, BT2-06) that ships with the Go2 EDU and Go2-W. Both share the same 120 × 80 × 182 mm footprint and slide in and out in seconds.
Both versions run Unitree's self-developed battery management system — cell balancing, overcharge and over-discharge protection, charging temperature and current protection, short-circuit and load detection, plus self-discharge protection for packs left in storage — and are certified to IS 16046 (Part 2) / IEC 62133-2. Both also accept the 9A Go2 fast charger: a full refill of the Standard pack takes about 0.8 hours and the Long Range version about 1.5, versus roughly 2 and 4 hours on the 3.5A standard charger.
Choose the Standard Go2 battery as a like-for-like replacement, or carry one as a spare to double effective runtime per outing. Choose the Long Range version to stretch inspection rounds, mapping runs and demo sessions to a typical 2–4 hours per charge without adding a swap stop.
Which Unitree Go2 Battery Should You Choose — Standard or Long Range?
For most Go2 owners the choice comes down to session length: the Standard 8000mAh Unitree Go2 battery covers a typical 1–2 hours of active use per charge, while the Long Range 15000mAh pack stretches that to 2–4 hours. Both fit every Go2 Air, Pro, X and EDU, and both accept the 9A fast charger — a full refill of the Standard pack takes about 0.8 hours and the Long Range version about 1.5 hours.
- Choose the Standard Go2 battery if you want a like-for-like replacement for the pack your Go2 shipped with, or an affordable spare to swap in mid-session.
- Choose Long Range if inspection rounds, mapping runs or demo sessions regularly outlast a single charge and a swap stop costs more than the upgrade.
- Not sure? Start with Standard — both packs share the same footprint and self-developed BMS, so you can add the other Go2 battery version later.
Which Go2 Models Does It Fit?
Both versions of this battery fit the Go2 quadruped family — Go2 Air, Go2 Pro, Go2 X and Go2 EDU share the same 120 × 80 × 182 mm battery bay and connector. Air, Pro and X ship with the Standard pack from the factory; the EDU ships with the Long Range version. The wheeled Go2-W is also factory-fitted with the 15000mAh pack, so the Long Range version drops straight in.
| Standard 8000mAh | Long Range 15000mAh | |
|---|---|---|
| Go2 Air | Fits | Fits |
| Go2 Pro | Fits | Fits |
| Go2 X | Fits | Fits |
| Go2 EDU | Fits | Factory fit |
| Go2-W (wheeled) | Factory fit |
Specifications
| Standard | Long Range | |
|---|---|---|
| Model No. | BT2-05 | BT2-06 |
| Dimensions | 120 × 80 × 182 mm | 120 × 80 × 182 mm |
| Weight | ≈2 kg | ≈2.5 kg |
| Rated voltage | DC 29.6V | DC 28.8V |
| Charge limit voltage | DC 33.6V | DC 33.6V |
| Charging current | 3.5A rated (accepts 9A fast charge) | 9A |
| Rated capacity | 8000 mAh · 236.8 Wh | 15000 mAh · 432 Wh |
| Standards | IS 16046 (Part 2) / IEC 62133-2 | IS 16046 (Part 2) / IEC 62133-2 |
| BMS | Unitree self-developed battery management system | Unitree self-developed battery management system |
| Protection & features | Charge display · storage self-discharge · balanced charging · overcharge · charging temperature · charging current · over-discharge · short-circuit · load detection | Charge display · storage self-discharge · balanced charging · overcharge · charging temperature · charging current · over-discharge · short-circuit · load detection |
| In the box | 1 × Unitree Go2 Battery | 1 × Unitree Go2 Long-Range Battery |
Go2 Battery Runtime & Charging Time
Unitree Go2 battery runtime depends on gait, speed and payload: expect around 1–2 hours per charge from the Standard pack and 2–4 hours from the 15000mAh version. Both packs accept the Go2 fast charger (33.6V 9A) — the Standard refills in about 0.8 hours and the Long Range in about 1.5 hours — while the 3.5A standard charger takes about 2 hours on Standard and 4 hours on the 15000mAh version.
| Standard 8000mAh | Long Range 15000mAh | |
|---|---|---|
| Typical runtime per charge | ≈1–2 hours | ≈2–4 hours |
| Full charge · standard charger (3.5A) | ≈2 hours | ≈4 hours |
| Full charge · Go2 fast charger (9A) | ≈0.8 hours | ≈1.5 hours |
Shipping, Warranty & Battery Care
We ship lithium batteries worldwide in UN38.3-compliant packaging via DHL or FedEx. Battery-only parcels travel as regulated air cargo, so delivery can take a few days longer than standard shipments; we confirm the exact transit time with your quote.
Every Unitree Go2 battery is 100% quality-inspected before it ships, so it arrives in perfect working order. If you keep a spare in storage, the self-developed BMS automatically brings it down to a safe storage level, so the pack stays healthy between sessions.
Last updated: September 2026.
Frequently Asked Questions
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