In the US there are a lot of rules about RC aircraft now. You have to include a transmitter that broadcasts the GPS location if you are flying outside of designated RC clubs fields. Most EU countries have similar rules.
My technique is to use the 10a mode on the multimeter and check the battery. A full AA will do nearly 10 amps and dead ones much less. Careful with larger cells or rechargeables since you might blow the fuse in your meter.
I moved from Colorado to the great lakes region partly for this reason. I was evacuated from both my home and workplace multiple times in the last 10 years I lived there due to wildfires. I don't miss living in the high desert. Cloudy winters are an adjustment though.
K!