yeah I've noticed the same with mines, my pulsar 3 used to do my 4600 lipos in about 25 mins, now the touch takes, more than twice that. I tried it without the balancing lead plugged in but it made no difference, I'm struggling now to have my cells topped up inbetween heats at a club night, as I only have 2 packs.
Wonder if there is a way to turn off balance charging, although I would have thought, you would need to have the balance lead connected to actually balance charge ?
confused ...