Alomejor 4 in 1 ESC 45A High Current Capacity Double Hole Spacing for FPV Drone Racing Review (2026)

Who should consider this ESC

This board fits builders assembling a freestyle or racing quad who want a single 4in1 ESC covering four motors rated at 45A continuous, without paying extra for a bigger name brand. The dual hole spacing, supporting both 20x20mm and 30.5x30.5mm patterns with M4 holes, makes it adaptable across more flight controller and frame combinations than a single pattern board, useful if you are not locked into one specific stack size yet. It suits pilots comfortable soldering their own components and configuring BLHeli firmware themselves, rather than buyers wanting a plug and play combo with dedicated brand support behind it.

What the numbers mean for your build

At around 46g and 44 by 43mm, this ESC is a touch larger and heavier than some competing 45A boards, worth checking against your frame's available stack space before ordering. It supports 2 to 6S batteries with a 45A continuous rating and 50A instantaneous peak, giving it enough headroom for common freestyle and racing motors under normal use. Protocol support spans DSHOT150, 300 and 600, PWM, Oneshot125, Oneshot42 and Multishot, covering essentially every receiver and flight controller setup a modern FPV pilot is likely to run, and it uses BLHeliSuite firmware in the BL16.7 family, the same BLHeli_S lineage used across most budget and midrange 4in1 ESCs.

Assembling and running it

Because this is a bare 4in1 board, you will solder it into a stack alongside a compatible flight controller and to all four motors, and the dual hole spacing gives some flexibility if your frame or flight controller uses a nonstandard mounting pattern. Once wired, configuring the ESC follows the familiar BLHeli_S workflow in Betaflight, so pilots who have set up other budget ESCs before will find the process unsurprising. As with any 45A board, keep an eye on motor KV and prop size when picking your setup, since running well beyond the rated continuous current on a sustained basis is the main way ESCs like this fail over time.

Where it sits against rival ESCs

Against the iFlight SucceX-E 45A V2, the clear category leader in this comparison, Alomejor's board matches the core current rating and protocol support but lacks the longer established FPV brand history and wider community troubleshooting base that comes with iFlight. The HAKRC branded 4 in 1 board with double hole spacing sits closer in spirit, both being general market boards rather than specialist FPV brands, though that HAKRC board adds damped light and regenerative braking features this Alomejor unit does not list. This board's size and weight also run slightly higher than some direct 45A competitors, worth factoring in in weight sensitive freestyle builds.

Verdict for budget conscious builders

This is a workable, fully specified 45A ESC for pilots who want broad protocol support and flexible mounting without paying for a premium FPV brand name, and the dual hole spacing is a genuine practical advantage when frame compatibility is uncertain. It ranks at the lower end of the ESCs compared here mainly because Alomejor operates as a general reseller rather than a dedicated FPV manufacturer, which matters most if something goes wrong later and you need real technical support. Builders who prioritize brand backing and a longer track record should spend a bit more on the iFlight SucceX-E instead.

Frequently asked questions