AltecLansing
Key Veteran
Location: Under the tire of a truck
| Mutt, Cowjock, I do not 3d fly at all. I do ovals, loops, occasional flips, and rolls. I am learning to smooth out my flight. Last year sometime, my 4.8 volt nicad receiver battery crapped out. I replaced it with a 4.8 volt nimh battery. For a few weekends, I got several flights out of one charge. Then, while coming out of a sideways loops, I lost rpms. My receiver had gone into battery failsafe and dropped my throttle. I barely made it out of the loop at 3 feet above the ground and I came down for a hard landing. I broke the landing gear and bent the spindle. At another point I went down hard from going into battery failsafe with the same battery. The costs for repair were around 200. So, I did some careful checking and flying of the nimh pack. It got to the point where it wouldn't last one flight before it went into battery fail safe. I switched to another nimh battery pack that I bought at the same time and had never been used. It didn't last one flight either. I did this experiment with quick charging the batteries at 1c and trickle charging them overnight with a nimh trickle charger. For me the 4.8 volt nimh and nicad battery set ups caused unnecessary damage by dropping their voltage below my failsafe mark on my receiver. I switched to an arizona regulator and a 5200mah lithium ion pack and never had the battery failsafe kick in at all. I can use those nimh packs on my helis with analog servos and have achieved five flights out of them with no issues at all. For me, the regulator took one problem out of the equation altogether on my evo with the digital servos. I've been running almost a year on the regulator and it hasn't gone bad yet, even when I dumb thumb or have another mechanical error and go down.
Man, I miss the eighties. |
