Funny in this hobby how things go wrong when you desperately want to fly. Now my 6V battery is dead. On such short notice none of the other fliers have anything ready. A couple of them have some unused 4.8V batteries which they have not used in some time. I myself have one that I have not used in 8 or so months. We are trying to charge them and check if they hold charge. Two questions here:

1) Will a 4.8V battery be able to take my 3D capable airplane? Am using high torque servos all around. I flew my first trainer for a year on 4.8v battery but that had normal servos

2) Is there a reliable way of checking whether the battries are holding charge? I found that even the dead 6V battery shiws same charge on no load on my voltwatch but almost immediately goes to low on turning a few servos. More worrying is what the servos do when the battery runs low, they start to move in one direction is small steps and do not respont to controller input. This is quite unlike my experience with the trainers battery which would deadstick and let me land safely.

Ameyam