Barrel Jack to 2-pin JST - TOL-08734 - SparkFun Electronics
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Amazon.com: 2 Pin Connector Waterproof Connector,Male and Female Way 16 AWG Wire Suitable for car Truck, Boat and Other Wire Connection (5 kit) : Automotive
APTIV (DELPHI) 12015792 Weather Pack 2-Pin Black Tower Sealed Female C – Parts Universe