Best Battery for Losi Hammer Rey U4

As a high-performance RC vehicle based on Casey Currie’s U4 Racer and powered by the Spektrum™ 3150Kv brushless motor, the Hammer Rey demands a battery that can keep up with its vigorous and aggressive nature.

This article is dedicated to helping you find the best battery that complements and enhances the Hammer Rey’s formidable performance. We’ve tested and identified the top batteries that offer optimal runtimes, impressive power, and a seamless fit, so you can focus on conquering every kind of rocky off-road terrain with your Hammer Rey.

1. Zeee 80C 5200mAh 3S

ZEEE battery

Brand: Zeee
Voltage: 11.1V
Capacity: 5200mAh
Discharge Rate: 80C
Connector: EC5 Plug
Size: 138mm x 47mm x 37mm
Weight: 380g

As an enthusiast of the Losi Hammer Rey U4, I’ve found the Zeee 80C 5200mAh 3S to be an incredible fit. The battery is one of the most value-for-money lithium batteries on the market, matching its advertised capacity almost exactly. This ensures ample runtime, allowing us to explore the Hammer Rey’s performance in varying off-road conditions without worrying about frequent battery changes.

The battery arrives perfectly balanced, which is a crucial factor for maintaining the overall performance of the RC vehicle over time. Moreover, the battery is robust and heavy, which contributes to the vehicle’s stability during aggressive off-road races. Its connectors are top-notch, ensuring a secure and efficient power transfer to the vehicle.

Given the quality and performance of the Zeee 80C 5200mAh 3S, it’s a steal at its price point. You simply can’t ask for more, especially when considering its compatibility and contribution to the overall performance of the Hammer Rey U4. It provides the power that this RC beast demands, enhancing its performance and reliability in all terrains and race conditions.

2. Spektrum 5000mAh 3S 100C

Spektrum battery

Brand: Spektrum
Voltage: 11.1 Volts
Capacity: 5000mAh
Discharge Rate: 100C
Connector: IC5
Weight: 0.45 Pounds (approximately 204g)

In my experience with the Losi Hammer Rey U4, the Spektrum 5000mAh 3S 100C proves to be a stellar choice. With a quick charge time and an impressive 30-45 minute runtime at 50-75% power output, it’s a power cell that does not compromise on endurance. This means longer play times, more aggressive jumps, flips, and wheelies, and overall, a more enjoyable experience with the U4.

After around ten runs, the batteries are still holding their initial charge and balance, showcasing their impressive reliability and longevity. This gives you peace of mind about their performance and reduces the frequency of replacements.

Moreover, the Spektrum 5000mAh fits perfectly in the U4, which is key for maintaining the car’s balance and handling. The hard case is another bonus – it’s sturdy and durable, providing excellent protection for the battery.

3. Yowoo 5000mah 3S 100C

YOWOO battery

Brand: YoWoo Power
Voltage: 11.1 Volts
Capacity: 5000mAh
Discharge Rate: 100C
Connector: EC5
Size: 155x50x25mm (±3mm difference)
Weight: 413g (±15g difference)

These batteries are a perfect fit for the U4. Their durability is noteworthy – they’ve already withstood some substantial tumbles and impacts, demonstrating their resilience in even the toughest off-road conditions. This durability ensures reliable, uninterrupted power delivery to your U4, even during the most intense driving sessions.

The performance of these YoWoo Power batteries stands out among other brands I’ve used over the years. They’ve proven to be consistently reliable, without any issues so far. This reliability is crucial in RC racing where unpredictable battery performance can be a significant disadvantage.

Moreover, they offer a considerable run time of 25 to 35 minutes, allowing for extended off-road racing sessions without the worry of power loss midway. This, combined with their high discharge rate of 100C, ensures that your U4 can maintain high speeds and perform those jaw-dropping stunts and jumps with ease.

For those looking for the performance of high-end lipos without the hefty price tag, or those on a limited budget, the YoWoo Power 5000mAh 3S 100C is an excellent choice. You’re getting longevity, performance, and cost-effectiveness rolled into one package.