Thanks Brian. I was just asking about the charge rate, because I am now using the Hypersonic charger and it does, indeed, charge a depleted pack in 15 minutes. That would necessitate a 4C charge rate wouldn't it? I would imagine that the guys at A123 Racing wouldn't have designed their charger to degrade the life of their cells, but I was hoping for some sort of confirmation.

I did email A123, but I thought I'd ask here because unlike RC Monster, A123 Racing is not open 24/7 for questions.