Not sure about with Crawlers but the best battery life I could squeeze out of the old systems was 10 minutes and that was with really low gearing.  But that was over 15 years ago, batteries have come a long way.

You might want to look into the Lithium Ion setups.  Expensive but supposedly work great.

Cool, thanks for the  info...

Z

Hey everyone,
Kyosho contacted us and has offered us another group buy at $225.00 plus shipping of course.. That is almost 25.00 cheaper than you can buy it anywhere online... If you missed the first group buy here is another chance!

we have them up for sale in the outlet right now.

thanks
Hutch