Decado
Active Member
Based on my experience, the current draw from the RC is tiny ... easily leaving you enough juice for 6-8 complete full-length flights. I currently have only two Spark batteries and after flying those to empty*, my controller hasn't dropped at all from the "full" charge indicator.
* Not empty enough to cause battery damage, though
Yes I'd agree with this, when I was testing android I took careful notice and while the charging from the device to the controller does have some effect unless you were running a device with a very small battery you're still going to be fine for 5 batteries of flight as long as everything is fully charged when you leave home.
Regards
Ari