Why Keep a Spare G1 Charger on Hand?
The G1 Charger is the charging adapter that ships standard with every Unitree G1, delivering 54V/5A output to recharge the robot’s quick-release battery. A spare G1 Charger means you can charge a second battery in parallel, keep one charger at each workstation instead of carrying one around, or have a backup ready the moment your primary charger fails or gets misplaced.
Because the G1 Charger is a simple external adapter rather than a built-in component, adding a second one is one of the easiest ways to remove charging as a bottleneck in a busy lab or demo schedule, especially when paired with a spare G1 Battery.
Key Features
54V / 5A Output: The G1 Charger matches the exact voltage and current the G1 Battery is designed for.
Wide Input Range: Accepts 100-240V AC at 50/60Hz, so it works on standard mains power in most countries.
Compact Footprint: Small enough to keep at multiple stations or pack alongside a battery for travel.
Parallel Charging: A second G1 Charger lets you recharge two batteries at the same time.
Direct Fit: Uses the same connector as the charger included with every new G1, no adapters needed.
Specifications
| Item | Specification |
|---|---|
| Product Name | G1 Charger (Spare) |
| Product Size | 210mm x 108mm x 48.2mm |
| Input Power | 100-240V~ 50/60Hz, 4A, 350VA |
| Output Power | 54V / 5A |
| Compatible Battery | G1 Battery (9000mAh quick-release) |
| Use Case | Parallel charging, backup, multi-station setups |
Compatible G1 Models
The G1 Charger works with the standard battery used across the entire Unitree G1 lineup, from G1 Basic through every G1 EDU-tier configuration, including the G1 EDU Advanced-U2. No model-specific charger is required.
Typical Use Cases
Teams that already keep a spare G1 Battery on hand almost always want a matching G1 Charger, since a second battery is only useful once it can be charged independently of the first. It’s also a practical backup for labs and classrooms that can’t afford downtime if a single charger is lost, damaged, or in use elsewhere. For general reference on the G1 platform and its official accessories, see Unitree’s official site.
Ordering Notes
Every new G1 ships with one charger included, so this listing is for teams that need an additional G1 Charger for parallel charging or as a backup. Always use the specified 54V/5A output when charging the G1 Battery to stay within the manufacturer’s safety limits.
Charging Speed and Safety
Matching the charging adapter to the battery it powers matters more than it might seem. Using an underpowered or mismatched adapter can slow charging dramatically or, in worse cases, stress the battery’s internal protection circuitry over repeated cycles. Sticking with the manufacturer-specified 54V/5A output keeps charge times predictable and keeps the battery’s safety systems operating the way they were designed to.
A wide 100-240V AC input range also means the adapter works the same way whether you are charging at a home lab, a university facility, or on-site at a trade show in a different country, without needing a separate voltage converter. That flexibility is one of the reasons teams that travel with their G1 for demos or competitions often carry more than one adapter rather than relying on a single unit for the whole trip.
Who Should Consider This Add-On
This accessory is a practical pickup for anyone running a G1 fleet larger than one unit, anyone who has already invested in a second battery, or anyone whose deployment involves travel between sites where leaving a charger behind is inconvenient. It is a low-cost way to remove a single point of failure from an otherwise reliable setup.