I'd build one for everyone if I could stomach charging a 2000% premium over what the components cost
I thought more about this. They likely step up the voltage so as to utilize a smaller gauge wire, then step it back down again in the sUAS. I've just almost doubled the price for the components. $300 worth of parts, with the massager option
We can easily compute a rough idea of current draw with an aftermarket battery.
1. Fly the H for, say, 15 minutes with a fully charged battery.
2. Recharge the battery with a charger that tells you how many amp-hours or milliamp-hours was required for a full charge. My 10 year old HiTech charger gives this reading, I imagine most newer ones do as well.
3. Multiply this reading by 4 (or 60/the flight time in minutes you flew)
This would be the average instantaneous amperage draw during flight.
At least I think it would - my brain is mush right now from dealing with mundane problems at work.