XT90 Female Connector Plug for LiPo Battery and ESC

Smaller XT30 and XT60 connectors are fine until a build's current draw outgrows them, and that is exactly the gap the XT90 standard fills - the same bullet-connector reliability, scaled up with gold-plated copper contacts rated for 90A continuous and up to 500V DC, suited to higher-power multirotor and e-bike-class current draws. Nylon housing keeps the connector mechanically solid under repeated plug and unplug cycles, which matters more on higher-current connections where a loose fit means heat.

At 21mm by 15mm by 8mm it is noticeably larger than XT60 hardware, a direct consequence of the thicker internal contacts needed to carry that current safely without excess resistance or heating at the connection point. This is the female half specifically, matching against an XT90 male connector on the battery or ESC side it is being wired to.

Common uses are wiring higher-discharge LiPo packs to ESCs on larger multirotor and heavy-lift builds, replacing an undersized XT60 connector that is running hot under load, and general high-current power connections on RC vehicles and e-bikes needing more headroom than XT60 provides.