Well, it looks that way. I plugged the pack into the charger and it shut off after about 10 minutes. Then I put my loaded voltage tester on the pack and you could watch the voltage rapidly go down until the pack was dead in about one minute. I pulled the pack apart, and all but one of the five cells test at 1.1 volt. The last cell checked at .9 volts and I threw that one away. I am going to re-assemble the pack as a four cell pack, and see if the cells work. Maybe I can then use it for a smoke pump or some other non critical application. It is really kind of weird how this pack failed. It was a Hobbico pack with Sanyo cells by the way, and it was possibly two years old.

Speaking of losing planes, or almost losing them, I was once flying my kit bashed low wing Stik. (The one in my avatar.) I landed the airplane, and as it was sitting there on the runway with the engine still running, I thought, "I'm going to take off one more time and fly for a bit." When I went to give it throttle to take off, nothing happened. I figured the throttle linkage had come undone, but then I noticed that none of the controls worked. I later found a minute amount of corrosion in the battery connector. Another CLOSE call....

Another note: My brother recently bought some unbranded battery packs off e-bay, (against my advice). He lost one plane with one of the packs. He gave me another one of the packs and I tested it. A brand new 2000 mah pack tested at 300 mah capacity, even after cycling, overnight charging, etc. They were junk packs....

AV8TOR