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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 |
Array testing outside rear in series
This testing will be conducted when the car is on and outside, and the mppts are actively charging the battery, which will be measured by a current clamp. All the mppts from the rear panel will be connected to the main battery pack, and the array will be facing the sun. The following table summarizes the test results.
| Weather/Outside conditions | Current Measured from array to Batteries | Notes | |||
|---|---|---|---|---|---|
Note: the car first had to fully turn on for the current path to be tested. This meant taking out the battery box and fixing one of the mppts becuase of a BMS fault that did not allow the car to shift from the aux power supply to the main battery pack.
ADditional note: the car is still not working, so we are going to test it by putting 6 50W 150mohm resistors in series to get maximum power out from the mppts, and measure the current passing through the resistors in series.
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SPI Communication Testing of MPPTs
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