If you've connected a lipoly battery in your robot or other device and you're using a beetleweight setup, you're probably using a two pin XT60
XT60 Male + Female Connector
XT60 Male Female Connector for RC Lipo Battery ESC - 2 Pairs
Get XT60 Male Connector Online at Lowest Price in India
Buy female XT60 with wire Online in India
Integy Connector: XT60 Female, 3.5mm (2)
XT-60 FEMALE CONNECTOR – TOMSON ELECTRONICS
XT60 Connector Nylon Male/Female pair Genuine Amass – Out of Darts
XT-60 connector (female)
XT60 Male Female Connector Pair, XT60 Connector, RC XT60
XT60 Female Connector High-Current, Board Mount
3 Way Parallel Cable Male/Female XT60 Connector for Drone Battery
Female XT60 Connector (1)
Female XT-60 Connector