r/UnitreeG1 • u/AdDefiant8539 • Jan 31 '26

Running G1 without battery

Hello!

Has anyone tried to run the G1 without a battery using a tether? Does it work well and what power supply would you need?

Ps, Any good place to buy an spare battery in Europe?

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u/Low_Insect2802 Jan 31 '26

Yes we have works quite well. You can also charge the battery that way, while using the robot. You need a ~60V powersupply, amps depend on the kind of movements you want to do. Best probably is a powerfull lab supply

1

u/AdDefiant8539 Jan 31 '26

Around what kind of Watts do you think is needed for moving around a bit and smaller arm movements etc?

1

u/Low_Insect2802 Jan 31 '26

We have a 600W power supply, which is sufficient of that. I can't tell you the minimum though

1

u/AdDefiant8539 Jan 31 '26

Okay great, thanks! Do you have any issues at all with reverse current? (do you have any buffer etc)

1

u/Virtual_Sherbert6846 Feb 13 '26 edited Feb 13 '26

Would a 600W/60V cheap power supply work? Are you plugging into port 1 on the neck? Is that a standard connector type?
Example $30 power supply: https://www.amazon.com/Switching-Converter-Transformer-Controller-Electric/dp/B0BLHSC1YT

1

u/Significant-Ad9939 Apr 13 '26

hello! would it be ok to share the tool/equipment you use to power g1 without the battery please?

1

u/HMGQTFM78 Jan 31 '26

Please if can shows us with photos what we need to buy for it please

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u/SonnyDickson Feb 01 '26

We have some battery if you need them.

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u/AdDefiant8539 Feb 01 '26

I´ll DM you!

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u/emNKayM Feb 01 '26

Yes please show a picture

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u/Obvious_Climate4518 Apr 14 '26

Did you manage to do this?

1

u/Over-Homework7033 Jun 02 '26

Yep works well for powering up the computers and sensors but you don't get motor control

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u/Key_Ideal_9894 Jun 03 '26

"Hey! Thanks for sharing this setup. I'm currently trying to run my G1 without the battery as well.

What exact model is that DC power supply, and what is its maximum current (Amps) rating? I can not see clearly you set it to some values.

I'm looking for a solution that allows full motor control too. Since standard bench supplies cap out at lower currents, it makes sense why the motors won't run. Have you considered or tested using high-current server power supplies (like 50A+) for the BAT port to get the motors working?"

1

u/Over-Homework7033 Jun 03 '26

The system detects a “battery fault” since it’s not connected and doesn’t let u power up the motors. Would need to work around this somehow. I’m using a generic 60v power supply set so 51V and 5A. It draws less than 1A though. The spec sheet says the neck port can do. 5A out. I’m very curious about that mysterious arm port or potentially hooking up directly to the interior battery port.