The Spektrum Smart G2 5000mAh 4S 100C LiPo is a hardcase battery designed for RC cars. It offers advanced tracking features and is rated for 100C. Testing shows its real performance is lower than advertised, would you have guessed this?
What Makes It Unique
The Smart G2 monitors temperature, charge cycles, and individual cells automatically. It is ideal for users who want safety and battery management. These features help track usage without extra devices.
Internal Resistance
The average cell internal resistance is 4.55 mΩ. This gives an estimated C rating of 16.6C. Maximum continuous current is 83A, far below the 100C advertised.
Load Performance
A 105A load test delivered 3,011mAh before reaching a thermal cutoff at 58°C. Voltage at 10 seconds was 3.50V. Energy output was 620 W-min, and average cell wattage was 337W. The Smart G2 cannot sustain over 80–83A without overheating.
The Smart G2 cannot sustain over 80–83A without overheating. For comparison, the HRB pack delivered 4,134mAh under the same conditions, with lower internal resistance and better sustained performance.
Practical Application
This battery suits RC setups where monitoring battery data is important. It is not designed for sustained high-current use and is better suited for light bashing
Final Thoughts
The Smart G2 performs well for battery tracking and safety. For sustained power, the HRB or Turnigy Rapid packs perform better. The Rapid offers both reliability and a lower cost.
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