200 only lasting 2 min at most.

[robl]

Has plenty of power for a min or so, then markedly reduced power? 6 months ago the battery's were working and I haven't flown since. They are at least 3 years old so I don't think they just died. Both of them are doingit. There doesn't seem to be any drag in the drive line. Could it be the esc? Neither esc nor motor are hot. I thought maybe batteries, but both doing it the same is strange.

[alphonso]

I do think it sounds like the batteries. Esc's usually just stop working. how many mah do they take on a charge ?

[robl]

Originally Posted by alphonso

I do think it sounds like the batteries. Esc's usually just stop working. how many mah do they take on a charge ?

i'm kind of thinking that too, just kind of strange they worked 6 months ago fine. I mean I haven't flown in approx 3 years before January, then I flew with them a bit and I could get it up fly for 4-5 minutes, do some flips etc.

Now I'm lucky if I'm getting a minute.

One battery took 255mah, other took around 500mah, 750mah batteries. I took both of them out again fully charged after posting this thread, Each one lasted maybe a minute before power was majorly down. When put on the charger, they are showing like 3.99 volts or more, so I don't think they are discharging, maybe they are just kaput?

[alphonso]

It looks like they're not delivering a good voltage under load going by your numbers.

[robl]

Yes I believe you are right. I think it's the end for this little guy. Gonna look into an x2 or trex 250 dfc after I get my trex 500 flying again.