Q: What is the KO45 ESC used for?

A: It is designed for standard 5-inch FPV freestyle drones.

A: No, it requires FC power supply.

Q: What is the main advantage?

A: Stable and affordable 45A power delivery.

Q: Can it handle aggressive flying?

A: Yes, within 5-inch freestyle limits.

Q: Is it beginner friendly?

A: Yes, very suitable for beginner builds.

A: Yes, for standard FPV usage.

Q: Who should buy it?

A: Budget and beginner FPV pilots.

skystars ko45 45a 3 6s 4 in 1 blheli s esc

NewSkystars KO45 45A 3-6S 4-in-1 BLHeli_S ESC

SKYSTAR-RC

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$ 52.99 ~~$59.99~~

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KO45 45A

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In Stock Expected ship within 5 days after order.

Free Shipping Over $99 | Save on Orders $99+

24-Month Warranty | 2 Years Full Protection

30-Day Returns From Shipment | 7-Day No-Reason Returns

24h Support Response | 24h Fast Support Guarantee

Top highlights

45A Current Capacity: Provides robust power delivery for demanding 3-6S setups.

6-layer PCB Build: Designs with over-current protection against electrical surges.

Wide Protocol Support: Compatible with DSHOT150/300/600, MultiShot, and OneShot.

Integrated Telemetry: Supports Voltage, RPMs, & Current with real-time power system monitoring.

30.5x30.5mm Mounting Pattern: Cost-effective for quadcopter frames with BLHeli_S firmware.

Payment | Every order you place with us is safe & secure

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Reviews

T**********r
Verified

For tinkerers, this is a gem. BLHeli_S is fully featured, and the ESC takes firmware flashes well. Excellent platform for learning and experimenting without risk.

Specification：KO45 45A
V*********r
Verified

The best budget ESC I've used. Performance rivals more expensive brands. For beginners or anyone on a tight budget, you can't go wrong here.

Specification：KO45 45A
B**************r
Verified

Takes a beating! I've crashed this quad more times than I can count. The ESC keeps on working. The conformal coating seems decent. Amazing durability for the price.

Specification：KO45 45A

Additional reviews after 41 days
After a particularly nasty crash that broke an arm, the ESC is still perfect. Tough as nails.
Replied by MEPSKING:Tough as nails is the goal! Glad it's surviving your flying adventures.
C************t
Verified

Using this on a 3.5-inch cinewhoop. The power is smooth and predictable, perfect for capturing stable footage. Handles 4S and 6S without any drama.

Specification：KO45 45A

Replied by MEPSKING:Smooth and predictable power is ideal for cinewhoops. Great choice!
L*****************2
Verified

Perfect for my efficient 6S long-range cruiser. Sips power and runs cool. Setup was straightforward. Provides reliable, clean power for extended flights.

Specification：KO45 45A

Replied by MEPSKING:Perfect for those long, relaxing cruises. Enjoy the extended flight times!
B**************9
Verified

Incredible value. The 45A rating is solid for most 5-inch builds. After dozens of packs, it runs cool and consistent. For the cost, it's unbeatable.

Specification：KO45 45A

Additional reviews after 177 days
6 months in, still going strong. Survived multiple minor crashes.
Replied by MEPSKING:That's what we like to hear - unbeatable value and durability. Thanks for the update!
A*************V
Verified

Fantastic ESC for the price! Flashed Bluejay without issues, runs my 5-inch quad smoothly and reliably. Great entry point into BLHeli_S without breaking the bank.

Specification：KO45 45A

Replied by MEPSKING:Welcome to the hobby! Glad to hear it's serving you well as a reliable starter ESC. Happy flying!
R***********r
Verified

Used this in a lightweight 5-inch racer. Throttle response is good, and it stayed cool during practice sessions. A solid, dependable choice for club-level racing.

Specification：KO45 45A