Knowing all offered are probably good, I would like to know a allaround good battery tester. Talking about a field tester that will provide a load maybe to check internal battery on the plane and the transmitter. Now I know the radio has a meter on it but thinking maybe battery is going down a little fast. Anyway a nose pointed in the correct direction would work. I have a volt ohm meter but it does not apply a load. Thanks and once more will be watching. gphil