Tarot TL3302 12S 100A Power Distribution Board with Current Sensor

The Tarot TL3302 is a quadcopter power distribution board rated for 100 A continuous, with built-in voltage and current metering that feeds Pixhawk and Betaflight flight controllers. It takes 8–60 V DC input, from 3S up to the 12S packs used on larger multirotors, so the same board suits FPV quads and heavier builds.

Key features

• Quadcopter power hub: rated for 100 A continuous through the board.
• Two regulated rails: a 5 V / 5 A BEC pad and two 12 V pads sharing 4 A, each with an LED indicator.
• Direct FC power link: a GH1.25 6-pin socket plugs into the flight controller's power port with a matching cable, carrying supply plus voltage and current readings.
• Battery-voltage outputs: one Vbat solder pad plus an XT60 (XT60PW) plug for powering extra devices at pack voltage.

Specifications

• Input voltage: 8–60 V DC (rated up to 12S)
• Continuous current: 100 A
• 5 V BEC: 5 A, solder pad with LED
• 12 V BEC: 2 × solder pads, 4 A total, with LED
• Vbat outputs: 1 × solder pad, 1 × XT60PW plug
• FC connector: GH1.25 6-pin socket
• Metering: battery voltage and current
• Weight: 41 g

After fitting, calibrate the current-sensor scale in your flight-controller firmware against a known load so the mAh-used reading is accurate, and remember the 4 A on the 12 V side is shared between both outputs when budgeting a camera, VTX or lights.