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SMC HCL-HV2 Flight 11.4V/3S-4000mAh-90C LiPo Battery

£24.99 (ex VAT: £20.83)

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Need more voltage, less weight, and a battery that doesn’t quit? The HCL-HV2 4000mAh 3S delivers peak power with minimal sag—because slow quads are just sad quads. Disclaimer: Improper use can cause damage or injury. See our LiPo Battery Safety Page for complete safety information.
SKU: 4090-3S1P
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Make sure you test before soldering

HCL-HV2 4000mAh 3S LiHV Battery – Lightweight, High-Voltage Power

The HCL-HV2 4000mAh 3S LiHV battery is a high-performance, low-weight powerhouse designed for high-speed drones, power-hungry builds, and weight-sensitive applications. Building on the success of the original HCL-HV series, this 90C-rated LiHV pack delivers higher sustained voltage under load with a boost in capacity per gram, giving you stronger throttle response and reduced sag throughout your flight.

Unlike traditional 3S (11.1V) LiPo packs, this LiHV battery charges up to 11.4V (4.35V per cell), meaning cleaner power, longer peak performance, and a noticeable increase in punch. Whether you’re racing, freestyling, or pushing long-range missions, the HCL-HV2 4000mAh is built to keep up.

Key Features:

True 4000mAh capacity (±5%) for extended performance
11.4V (3S, 4.35V per cell) LiHV chemistry – higher sustained voltage than standard 3S LiPos
90C discharge rate – instant, reliable power with minimal voltage drop
Compact & lightweight – ideal for performance-driven builds
Durable G10 composite top & bottom plates for added protection
Supports 1C-5C charging – flexible charge rates (higher rates reduce cycle life)
10AWG thick power leads – efficient current flow with minimal resistance

Specifications:

  • Capacity: 4000mAh (±5%)
  • Voltage: 11.4V (3S, 4.35V per cell)
  • Discharge Rate: 90C
  • Size: 21mm x 44mm x 140mm
  • Weight: 276g
  • Wire Gauge: 10AWG
  • Charge Rate: 1C-5C (higher charge rates reduce cycle life)
  • Power Factor: TBD @ 4.35V

What’s in the Box?

  • HCL-HV2 4000mAh 3S LiHV Battery
  • Pre-installed 10AWG power leads
  • High-quality balance lead for precise charging

⚠ Accessories may vary based on availability.

LiPo Battery Safety – Important!

LiPo batteries are powerful and require careful handling. Fire risk exists if misused.

Key Safety Points:

  • Always read full safety guidelines: LiPo Battery Safety Page
  • Use LiPo chargers only.
  • Charge in a LiPo safety bag, on a non-flammable surface, and never unattended.
  • Inspect before use, don’t use damaged batteries.
  • Dispose of responsibly.

By purchasing, you agree to handle LiPo batteries responsibly and understand the risks. Unmanned Tech UK is not liable for misuse.

Battery Capacity

Battery Discharge Rate

Battery Voltage

Dimensions
Weight 300 g
Dimensions 3 × 5 × 2 cm
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SMC HCL-HV2 Flight 11.4V/3S-4000mAh-90C LiPo Battery
£24.99 (ex VAT: £20.83)