XT30 vs XT60 vs XT90: Which battery connector to use?

XT30 vs XT60 vs XT90 connectors: amperage, cells, drone class, weight and wire AWG. Which to use in your FPV build (toothpick, 5", long range).

Feature	XT30	XT60	XT90
Continuous current	30A	60A	90A
Peak (real FPV burst)	~70A	~180A	~240A
Typical cells	2-4S	4-6S	6-8S+
Drone class	Toothpick, cinewhoop 3-4"	5" freestyle / race	7"+ long range, cinelifter
Pair weight	~2 g	~5 g	~10 g
Typical wire (AWG)	18-20	14-16	12

The battery connector is the electrical joint between the pack and the rest of the drone, and picking the wrong one has real consequences: an undersized connector heats up, drops voltage under load (sag) and in the worst case melts mid-flight. The XT series (by AMASS) is the modern FPV standard: XT30, XT60 and XT90 depending on the current your build moves. The rule is simple: the bigger and more powerful the drone, the thicker the connector.

Why current matters, not cell count

Many people pick the connector by cell count ("6S = XT60"), but what melts a connector is CURRENT (amps), not voltage. Four 2207 motors on a 5" at full throttle can pull 120-150A of peak for fractions of a second. The XT60 handles ~60A continuous and peaks well above that because those pulls last milliseconds. That's why the XT60 is the 5" standard even if the number looks low: in real FPV you never hold full throttle continuously.

When to step up to XT90

Step up to XT90 when sustained draw grows: 7" and 10" long range with 2806/2810 motors, 6-8S cinelifters carrying a GoPro, or any build where you cruise at mid-high power for long stretches (not bursts). There the XT60 genuinely heats up because the current is no longer millisecond peaks but a high continuous load. The XT90 also cuts voltage drop, which on long range means more flight time.

Whoops and micros: forget XT

Below a toothpick, XT connectors are overkill and add weight. 1S whoops use BT2.0 (the 2023-2025 standard, handles ~25A with less sag than the old PH2.0), and some premium micros use A30 or GNB27. The XT30 starts to make sense on toothpicks and 3-4" cinewhoops with 2-4S packs, where draw climbs from the whoop's ~10A to 20-35A. Quick rule: 1S whoop = BT2.0, 2-4S micro = XT30, 5" = XT60, 6S+ big = XT90.

Which to pick by use case

5" build (freestyle or race, 6S 1300mAh): XT60. The standard: handles the burst of four 2207 motors without heating up.
Toothpick or 3-4" cinewhoop (2-4S): XT30. Light and more than enough below ~35A continuous.
7" long range or cinelifter (6-8S, big motors): XT90. XT60 heats up under sustained peaks from 28xx motors.
1S indoor whoop: None of these: use BT2.0 (less sag than the old PH2.0). XT connectors are overkill for 1S.

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