Right now? I'm using the Thunder 1220 that I sold to Oasis because somebody swiped my Thunderpower 820 in the picture Saturday night.

I loved that charger. The dual outputs is kind of handy, being able to adjust the threshold cutoff to exactly 4.22v and it will discharge at 10 amps which is also kind of handy if you run a class where battery condition matters and you need to know. It was small. You could read the display. Ohwell.