In this test, I compared the most expensive battery I’ve tested so far against one of the best value performers. The goal was to see how the Spectrum Smart G2 stacks up against the CNHL 5200mAh in real high-load conditions. Both packs were tested under identical setups to compare power output, voltage stability, and usable capacity under load.
Battery Test Group / What Makes It Unique
The two packs tested are the Spectrum Smart G2 5000mAh 100C and the CNHL Racing Series 5200mAh 90C. The Spectrum costs about $135 USD and includes Smart telemetry via an IC5 connector. This allows data integration with compatible systems.
The CNHL costs about $39.99 USD and focuses purely on performance per dollar. It does not include Smart features, but it consistently delivers strong output in load testing. Both packs were tested using the same discharge profile for consistency.
Internal Resistance
Internal resistance was not directly measured, but it is reflected in the performance data.
The CNHL maintains higher wattage across most of the discharge curve. This indicates better voltage stability under load. The Spectrum shows slightly more voltage drop during sustained discharge, suggesting higher effective resistance in comparison.
Load Test Results
Both batteries were tested at four key points during discharge:
Key Takeaways
- CNHL leads by ~15% at max current
- CNHL maintains ~15% advantage at 10 seconds
- CNHL still leads at 30 seconds
- Spectrum slightly edges out at cutoff only
This shows that the CNHL delivers more consistent high-power output throughout the discharge cycle.
Capacity Under Load
| Battery | Usable Capacity (High Load) |
|---|---|
| Spectrum Smart G2 | ~3011mAh |
| CNHL 5200mAh | ~4700mAh |
The CNHL delivers about 56% more usable capacity under a 100+ amp load. This is one of the most important differences in real-world performance.
Practical Uses
The Spectrum Smart G2 is best suited for users who want telemetry integration and system-level data tracking. It works best in setups already using Spectrum electronics.
The CNHL 5200mAh is better suited for performance-focused users. It delivers more power, more runtime, and significantly better value per dollar. It is the stronger choice for most RC applications.
Final Thoughts
The CNHL is the clear winner in this comparison. It delivers higher sustained power and significantly more usable capacity under load. It also costs far less. The Spectrum only shows a small advantage at the very end of the discharge curve. That is not enough to offset the large price gap. Unless telemetry integration is essential, the CNHL is the better overall battery for performance and value.
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