Best Battery for E-Flite UMX Series

Choosing the ideal battery for your RC airplane is crucial in enhancing its performance and flight experience. The E-Flite UMX Series, known for its diversity ranging from jets like the A-10 Thunderbolt II to classics like the Pitts S-1S and Turbo Timber Evolution, requires a power source that aligns with their unique characteristics and flight demands.

In this guide, we delve into the best battery options that not only meet the energy requirements but also optimize the distinct features of each model in the UMX Series, promising exhilarating flights and dependable power delivery.

Gens ace 3S 45C 800mAh

Applicable: UMX A-10 Thunderbolt II

Brand: Gens ace
Voltage: 11.1 Volts
Capacity: 800mAh
Discharge Rate: 45C
Connector: EC2 Plug
Size: 58*31*23mm (LWH)
Weight: 100g

Harnessing the Gens ace 3S 45C 800mAh battery in my UMX A-10 Thunderbolt II has notably elevated my flying experience. During a season of 100 flights, this battery has showcased stellar performance, marrying durability with efficiency. The A-10, known for its swift and agile maneuvers, benefited significantly – I observed a pronounced improvement in the plane’s performance compared to using the stock battery.

The 45C discharge rate ensures that the A-10 has a consistent and robust power supply, enhancing its dynamic movements and responsiveness. Additionally, the 800mAh capacity grants a satisfying flight duration, allowing for extended air time to explore the aircraft’s capabilities. Given the Thunderbolt’s reputation for high-energy maneuvers, this Gens ace battery is a remarkable match, providing the necessary juice to fully exploit the model’s potential.

GNB 250mAh 1S 30C

Applicable: UMX Radian & Night Vapor

GNB battery

Brand: GNB
Voltage: 3.7 Volts
Capacity: 250mAh
Discharge Rate: 30C
Connector: Micro JST 1.25 Connector
Size: 55x11x5mm (LWH)
Weight: 6.6g per unit

Introducing the GNB 250mAh 1S 30C to my UMX Radian and Night Vapor was a game-changer. These batteries pack a punch! They are lightweight and compact, aligning perfectly with the design of the UMX Radian and Night Vapor, which are known for their light frame and agile flight characteristics.

With no issues during charging or discharging, and only a warm touch post-operation – no overheating, I am genuinely impressed. The 30C discharge rate supplies ample power to the motors, ensuring smooth and stable flights, particularly beneficial for the gliding Radian and the nocturnal adventures with the Night Vapor. They maintain an excellent balance and offer great value compared to other brands. These GNB batteries indeed maximize the joy of flying these specific UMX models by complementing their design and flight demands.

Gens ace 3S 45C 450mAh

Applicable: UMX Air, Tractor P-51D Voodoo, Pitts S-1S, Timber X & Turbo Timber Evolution

Gens Ace

Brand: Gens ace
Voltage: 11.1 Volts
Capacity: 450mAh
Discharge Rate: 45C
Connector: JST-SYP plug
Size: 90*42*25mm (LWH)
Weight: 45g

The Gens Ace 3S 45C 450mAh batteries have been a revelation for my range of UMX planes, including the Air Tractor, P-51D Voodoo, Pitts S-1S, Timber X, and Turbo Timber Evolution. The discharge is impressively smooth and linear, negating any fears of hobbled flights back due to sudden battery collapses. Their value for the performance they deliver is remarkable, with the cells maintaining consistent voltage and demonstrating high reliability.

The 45C discharge rate brings out the vibrancy in each of the planes, ensuring dynamic and energetic flights. The battery’s 450mAh capacity aligns well with the UMX models’ needs, allowing for a balanced and enjoyable flight time. Its compact size and lightweight do not burden the aircraft, ensuring the inherent agility and nimbleness of the UMX series are preserved and even enhanced.

TATTU 800mAh 25C 1S

Applicable: UMX Twin Otter & Ultrix

TATTU battery

Brand: TATTU
Voltage: 3.7 Volts
Capacity: 800mAh
Discharge Rate: 25C
Connector: JST Plug
Size: 44x24x9mm (LxWxH)
Weight: 20g

Pairing the TATTU 800mAh 25C 1S batteries with my UMX Twin Otter and Ultrix has yielded outstanding results. These batteries have remained robust, well-balanced, and free from swelling, demonstrating their durability and quality. The power delivery throughout the flights is potent, and the battery voltage remains steady even after dozens of uses. I’ve had these batteries for years, flown numerous times, and they rank among the best I’ve owned.

The 25C discharge rate may seem modest, but it aligns perfectly with the power requirements of the Twin Otter and Ultrix, ensuring efficient energy utilization and stable flights. The 800mAh capacity is generous, contributing to extended flight times and a more immersive flying experience. Their compact dimensions and lightweight nature make them an ideal fit for these UMX models, maintaining the aircraft’s structural balance. In essence, the TATTU batteries have been a reliable power companion, enhancing the flying enjoyment of my Twin Otter and Ultrix.