Another test was conducted on an expedition to the Caprivi Strip in December/January 2018.
For anyone who wasn´t there in that period, this time of year it is the rainy season, meaning it is cloudy, hot and humid.
For an expedition it means, the sun is covered by clouds most of the time and if the sun is there, you don´t want to stand in the sun with your solar panels, as the humidity is very high.
As we had a fuel cell with us, we didn´t have to worry about that and could look for a suitable place for resting according to the weather as our power consumption was always covered by the fuel cell.
Especially when it was raining and we stayed in camp, we could use all our electrical appliances, like fridges, GPS system, lights, laptop, radio and camera charging.
In the middle of the expedition, the fuel cell saved the further outcome of the expedition. We had a failure of the solenoid between our starter battery and the auxiliary battery, meaning that the auxiliary battery wasn´t charged anymore when the engine was running.
In a normal setup the auxiliary battery would have been depleted in about 8 hours, but as we carried 10L of methanol along, we could carry on and the fuel cell just had to work more than normal and we could finish the 5 last days without compromise.