Which brand?

[ryanpatterson]

Yea i easily get carried away already :)

Charger has just finished and i put 4280 back into the Zippy. So it did have a bit left. The buzzer was going on hover though.

[kilby]

There is every liklihood that the voltage had sagged, though temperature will affect how long you get too (always if temperature affects all batteries equally)

[ryanpatterson]

Thanks Kilby. Yea that sounds like something that has happened. As i didnt charge one of the "flat" batteries and now its sitting at 14.07v (was 13.6 after bringing down at the end of a flight and hovering for a minute)