HighPlains and hungryandbroke

I think you are missing the point here. If proper care is taken with your battery pack, then there is no need for anything. But, most of us do what we can to fly and keep our batteries charged. I take pains to make sure that they are charged enough to fly. The voltwatch does that very nicely. It gives me a visual indication of what is going on before and after each flight, so it gives me a good feeling for what happened during flight.

The specs for voltwatch say 4 - 34 ma current draw. That's a range of current draw with the minimum being least active and the most current is with all LED's lit. Come on, don't be a politician and give the worse condition as a typical operation example. Normal operation is probably in the range of 10 to 20 ma. And that's probably an over estimation. Rarely (if ever) are all the LED's lit. And you know that they have to list the worse condition even though it will most likely never happen.

For a healthy receiver system, and a properly charged battery if sufficient capacity, (standard shipiment is around 700 mah with new transmitters.. I use a 1200ma NiMh 5 cell pack, on some aircraft, two of these) there is plenty of available current without even considering voltwatch. Even at 20 ma/hour, that would take 14 hours to fully drain a 700 mah battery. I don't see people flying continuously for even 5 hours, giving lots of room for the voltwatch current draw.

Of course it's not calibrated. Who cares. It's for an indication, not a precise measurement of battery voltage. If it goes to the yellow or red, it's time to recharge before flying again. What needs to be calibrated with that type of display? Come on. And of course it's connected to a load, and a proper load. What are servo's and a receiver considered? If not a load, then what? Do they put a demand on the battery? Mine do.

Don't over-exaggerate just to try to prove a point. The current draw is minimal and you know it. The use of voltwatch is a good practice, and the device is a good product.

CGr.