Thread: Question Double horse 9116 Heli
View Single Post
Old Dec 22, 2011, 06:19 PM
gordonzo is offline
Find More Posts by gordonzo
Different fly 4 different guy
gordonzo's Avatar
Joined Jan 2011
2,126 Posts
Hey guys when you're looking for replacement batteries there are some other things to consider.

Some of the stock batteries are 'optimistically' rated and have less mah capacity than claimed. Also stock batteries tend to have a very low 'c' discharge rating, often only 10c to 15c.

The mah rating is kind of like the amount of fuel in the tank while the 'c' rating is how quickly that fuel can be delivered or discharged. Just adding more fuel or mah might only make the heli heavier.

A higher quality battery of same, or even lower mah but with a 20c or 25c rating is often better than going with more mah's. Either way there will be more strain on the heli's motors and temperatures should always be monitored, and flight lengths adjusted accordingly.

Example:

I have a heavy 4ch heli with a 3.7V-500mah battery. Flight times were 2-1/2 minutes of hard flying plus maybe 2 minutes more of hovering.

With a replacement Zippy 400mah 20c battery, which is lighter, flight times are 5 minutes of full power.
gordonzo is offline Find More Posts by gordonzo