Foxeer Reaper F4 Mini 128K 45A BL32 4-in-1 ESC 20x20

The Foxeer Reaper F4 Mini is a 20x20 mm 4-in-1 ESC built on a 128K F4 MCU running BLHeli_32, rated 45 A continuous per motor on 3-6S. It suits compact mini quads and 5-inch freestyle or racing builds that use a 20x20 stack but still want full 6S headroom.

Key features

• 45 A continuous / 65 A burst on each of the four channels
• BLHeli_32 firmware 32.9 with ESC telemetry and bidirectional DShot support for Betaflight RPM filtering
• Built-in current sensor (scale 115) for amperage and mAh-used readouts in the OSD
• No onboard BEC — pair it with a flight controller that takes battery voltage directly and carries its own regulators
• 10 g on a 40.5 x 33 mm board only 5.5 mm thick

Specifications

• Continuous / burst current: 45 A / 65 A per motor
• Input voltage: 10-26.2 V (3-6S LiPo)
• Firmware: BLHeli_32 (FOXEER_ReaperM4IN1_F4_45A_128_Multi_32_9)
• MCU: F4, 128K
• Input signal: DShot150/300/600/1200, MultiShot, OneShot
• Telemetry: Supported
• BEC: None
• Current scale: 115
• Mounting: 20x20 mm, 4 mm holes for M3 screws
• Dimensions: 40.5 x 33 x 5.5 mm
• Weight: 10 g
• Operating temperature: -20 to +55 deg C

Before buying, confirm your flight controller is a 20x20 board and compare its ESC connector pinout with this ESC's harness — re-pin the plug if the current, telemetry or motor-signal order differs. Set the current scale to 115 in Betaflight so the mAh counter reads correctly, and fit a low-ESR capacitor across the battery pads on 6S builds.