I run 2 4S 3200-3700mAh packs in series in my 8S set up with the Neu 1515/2Y and it's just the incredible set up I've had yet. My spikes are in the 60A (Which is 1776 watts of pure torque heaven) and everything just runs super cool. With a fully charged pack (3700mAh 25C) I've ran my truggy once for close to 50 minutes (Not continuously, but ran 30 minutes continuous). I got bored after 30 minutes though and messed around with another vehicle and ran another 20 minutes with my truggy afterwards. A lot of confusion comes when people say an HV set up is best for high speed runs. Well that can be true, but to fully appriciate the values, you have to get the right set up and you can basically run all day long with a few packs which is great when bashing with friends, but not so good when running alone
. This video I made after I ran my truck the previous day and I didn't charge the packs:
http://www.youtube.com/watch?v=6RUtx...e=channel_page and
http://www.youtube.com/watch?v=kaH0Z...e=channel_page.