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Quantity
1
Description
5.0
1 rating
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1
Solid pack!
Gens ace is widely regarded as one of the most reputable brands in the RC industry. This specific 4000mAh 3S pack is a "sweet spot" battery, balancing extended flight/run times with a manageable weight.Key SpecificationsCapacity: 4000mAhVoltage: 11.1V (3 Cells / 3S)Discharge Rate: 30C (120A continuous)Connector: XT60Application: Medium-sized airplanes, scale helis, and RC boats.Pros and ConsProsConsConsistent Reliability: Known for excellent cell matching and staying balanced over hundreds of cycles.Moderate C-Rating: 30C is plenty for scale flying, but might feel "mushy" for high-performance 3D aerobatics or high-speed EDF jets.Build Quality: Features high-quality silicone wires and a durable shrink-wrap that resists minor impacts.Physical Size: It is noticeably bulkier than the common 2200mAh or 3300mAh packs; check your battery tray clearance.Minimal Voltage Sag: Holds its voltage well under load compared to "budget" brands.Best Use CasesRC Airplanes: Perfect for 1.2m to 1.5m wingspan sport planes (like the E-flite Timber or Cherokee) where you want 10+ minute flight times.Scale Crawlers: If you have the space, this provides massive runtime for a day on the trails.Ground Stations: A great, stable power source for FPV goggles or ground-based equipment.Final Verdict: 4.5 / 5This battery is a reliable workhorse. While it isn't designed for racing or extreme punch, it excels in longevity and stability. If you prioritize safety and battery health over raw explosive power, this is one of the best investments you can make for your RC hangar.Pro Tip: To maximize its lifespan, always store this battery at 3.8V - 3.85V per cell (Storage Charge) if you aren't planning to use it within 24 hours.
LiPo.si · January 26, 2026
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