Align ESC odd?

[Leebert]

With the Rappy out of action I've just had a hover with the 450SE to get some stick time in and had an odd thing happen.

The battery was getting low so I came in to land and the head speed starts to "pulse" at a rate of about twice a second from normal speed to a slightly slower speed and back again.
I shut it down and put a new battery in and it was fine.

I put the pack on the v balancer and it was low - is this pulsing thing something to do with the battery saver on the Align 35G ESC?


Thanks.

[robgt]

It's normal for the ESC to warn you of impending battery emptiness by pulsing the motor.
You're better off flying until you hear the pack drop off in power, then landing.
Your packs will thank you for it
Cheers,
Rob

[Leebert]

Thanks Rob.
I thought as much. I use the tx timer to tell me when to land but I think I must have used the battery for a set-up flight and forgotten about it.

The ESC low battery warning is set to high (safest, 3.2v/cell I think) so I should be ok. It's on charge now so I'll see how much gets put back in.

[Leebert]

Just put 1510 back into a 1800 pack. So I ran that one to about 85% ish instead of 80%. Not as bad as I first thought.
It is an old pack - it probably isn't 1800mAh anymore and, knowing FP, it certainly won't be 20C or anything close