I recently got a DS Lite and a DSTT. I actually wanted an Edge card, but DX has sold out of them, so I thought I'd order a cheapo one, then order a better one at a later date. Anyway, it's an original DSTT, and it's not a bad card really, it runs everything, the only fault is the lack of alphabetical sorting, which is a bit of a pain. And also - battery life. It does consume significantly more battery life than a retail cart. So I was wondering, does anyone know which slot 1 card is the most energy efficient? I heard the Cyclo uses more power than most due to extra hardware, but I haven't heard anyone mention which cards consume the least power. In fact, I'm surprised they haven't been benchmarked and made into a sticky here actually. Do you think the other slot 1's are much of a muchness, or would an AK2 or Edge card consume less power?