I have a Bugle running on Panasonic sealed lead acid batteries, 12V 1.3ah. I've had the units about 18 months. I usually deep cycle the batteries, they get somewhere around 20 hrs to full discharge.
Lately (last few months), when I switch the Bugle on, it takes 3-4 minutes for it to power up. Silence for about two minutes, then it 'ripples' for a minute or two and finally the signal gets fully through. This is the case whether the batteries are fully charged or partly discharged.
Did I cause this by deep cycling the batteries? i.e. they aren't up to snuff anymore? Or could it be something else.