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| MPPT # | Resistance (Load) | Voltage | Current |
|---|---|---|---|
| 1 | 1000 | 15.918 | 0.01533 |
| 1 | 10 | 0.671 | 0.0667 |
| 2 | 1000 | 15.937 | 0.1553 |
| 2 | 10 | 0.731 | 0.073 |
| 3 | 1000 | 16.332 | 0.0161 |
| 3 | 10 | 0.745 | 0.0742 |
| 4 | 1000 | 16.437 | 0.0161 |
| 4 | 10 | 0.866 | 0.0863 |
| 5 | 1000 | 16.591 | 0.0159 |
| 5 | 10 | 0.833 | 0.0831 |
| 6 | 1000 | 16.563 | 0.0159 |
| 6 | 10 | 0.931 | 0.0929 |
To conclude this testing, the only way that the cells are the point of failure is if in direct sunlight they still do not have a sufficient power output. I will try to test this, however it is winter so getting the car outside may be a little tricky. Also note in this lighting condition, using the 240W bulb did not improve the voltage out by more than 1V, so the lighting conditions right now are similar to the bulb.
Array Testing outside
Since everything seems to work isolated, we are going to test each mppt connected to an e-load/the battery outside. The first testing will be each mppt isolated and connected with an e-load to test their max power output.
The second testing will be a fully integrated test to see if the current going to the battery is sufficient for prolonged periods of time.
| MPPT# | Outside Conditions | Resistance of E-load | Voltage on E-load | Current on E-load | Notes |
|---|---|---|---|---|---|
| 1 | cloudy | 250 | 25.252 | 0.1012 | sun is not out will test rest later. also at a certain resistance the mppt goes into through mode, has 8w output, and when its not it has like 2W input |
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SPI Communication Testing of MPPTs
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