Table 1 Summary of values
From: An intelligent solar energy-harvesting system for wireless sensor networks
| Â | Voltage/V | Current /mA |
|---|---|---|
Battery nominal voltage | 3.7 | Â |
System output voltage | 5 | Â |
Average operating current | Â | 16 |
Output voltage of the solar panel | 0–23 |  |
Normal voltage | 5 | Â |
Voltage threshold | 3.6 | Â |
 Protection voltage | 3.3 |  |
 Danger boundary | 3 |  |