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 Connector Male-Female Pair for LiPo Battery
XT-60 Male Female Connector Pair, Plastic at Rs 150/piece in
Prewired Female XT60 Connector 30cm — Switch Electronics
XT60 Male Female Connector Pair, XT60 Connector, RC XT60
XT60 Battery Connector (Female)
XT60 Female Connectors - 2 Pieces Pack - Genuine buy online at Low
Adapter from female XT60 connector to cigarette lighter plug
Connector XT60 female - ARDUSHOP
XT60 Female Connector Core Electronics Australia
XT60 Connector (Female - Male) Price Jsumo