save minimum receiver voltage?
 

For a standard 4 cel 4.8v battery pack, what is the minimum voltage that a pack can have and still safely control the airplane? I have several different types of receiver battery led indicators that go from green to yellow to red, but I don't know at what voltages these change and what is too low a voltage to fly safely.

I currently have a battery pack that I have used on 5 different flights of about 7 minutes each and it still showed the green led in the far left position. I have left the receiver on for about 5 hours and it has only dropped down one led. I am concerned that the led battery monitor is defective, but need to have some voltages to measure against. I have a litco alpha 4 that I can run the "V" algorithm on to check the load and no-load voltage.

Thanks,

Terry

save minimum receiver voltage?
 

From what I've read, anything 4.8V or higher, you're safe.

4.6-4.8v, you're probably safe, but not as safe as if you charged them.

Below 4.6v, don't fly.

What size plane is this one? The Alpha uses a 1amp load to test the battery. For a small plane, this is not a realistic load. It's too much. It should be more like 300mah. I can't remember on mine, but read the instructions on the Alpha and see if you program the other ports, to drop that down.

If you can program the other ports (you don't have to have a battery hooked up to them) then the load would drop respectively. Program all 4 and the load would be 250mah. This would be a more "real world" load to give you a more appropriate reading.

The 1000mah (1amp) load is ok, it will just show a "no fly" voltage sooner.

Mike

save minimum receiver voltage?
 

Please sent me an Email and I will send you a copy of what I had sent to another fellow with the same question. It is too lengthy to place here.

Please indicate your interest in flight pack voltage concerns.

Regards

save minimum receiver voltage?
 

yes I believe the alpha 4 is 1 amp. I normally have all four ports programmed and in use, so 250ma will work fine for my needs.

Terry

save minimum receiver voltage?
 

Double check, 'cuz I'm not sure the "V" funtion's load is affected by the programming of ports. I know the charge, discharge functions are for sure.

Again, it's not necessarily a BAD thing to test it with a larger load than needed, it'll just give you a no fly voltage sooner.

Mike