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SMC HCL-HV2 Flight 15.2V/4S-4000mAh-90C LiPo Battery

£34.99 (ex VAT: £29.16)

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Why settle for 4.2V when you can crank it up to 4.35V? The HCL-HV2 4000mAh hits harder, sags less, and makes your motors feel like they just had an espresso shot. Disclaimer: Improper use can cause damage or injury. See our LiPo Battery Safety Page for complete safety information.
SKU: 4090-4S1P
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Make sure you test before soldering

HCL-HV2 4000mAh 4S LiHV Battery – High Voltage, Ultra-Responsive Power

The HCL-HV2 4000mAh 4S LiHV battery is a lightweight, high-performance powerhouse designed for pilots who demand maximum voltage, rapid discharge, and peak efficiency. Building on the success of the original HCL-HV series, this 90C-rated LiHV pack delivers a higher sustained voltage under load, with a boost in capacity per gram—all without sacrificing power output.

With a 4.35V per cell (15.2V total) voltage, this battery ensures snappier throttle response, minimal voltage sag, and rock-solid consistency throughout your flight. Whether you’re a freestyle pilot needing sharp, instant power, a racer looking for maximum burst output, or a long-range explorer seeking the perfect balance of weight and endurance, the HCL-HV2 4000mAh is engineered to deliver power where it counts.

Key Features:

True 4000mAh capacity (±5%) for extended, high-output performance
15.2V (4S, 4.35V per cell) LiHV chemistry – delivers higher sustained voltage
90C discharge rate – instant power with minimal sag
Optimized power-to-weight ratio – higher energy density per gram
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: 15.2V (4S, 4.35V per cell)
  • Discharge Rate: 90C
  • Size: 27mm x 44mm x 140mm
  • Weight: 358g
  • 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 4S LiHV Battery
  • Pre-installed 10AWG power leads
  • High-quality balance lead for accurate 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 375 g
Dimensions 3 × 5 × 2 cm
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SMC HCL-HV2 Flight 15.2V/4S-4000mAh-90C LiPo Battery
£34.99 (ex VAT: £29.16)