If you have a bike with a canbus it might be worth getting a charger that supports that so you can plug it in directly.
Thanks, I had seen those. Did it come with croc clips?I use an Oxford oximiser 900, has a LCD readout so you know what it's doing, does the job well.
You've got it attached the right way, yes?
It should give you a warning light if anything is wrong, the LCD should light up and indicate if it's on bulk charge/maintain etc.
Does it have some sort of recovery programme it's running maybe? That's what the Optimates do on a dead battery, they will try pulse recovery or something like that, so it might just be pulsing it?