ORIGINAL: jmohn
Jim,
You can stick all the battery packs up front right behind the firewall. That's what I had to do on mine. I made a hatch rught behind the front firewall and stuck all the packs right there. It balanced fine that way.
If you use 10 or 12 guage wire you should be fine. Just get the good stuff (wet noodle) stranded copper to keep the resistance down.
Mine fit in the fuze right above the front wheel bay.
Jeff
For my ESM Bearcat I had to place the 10s Lipos ON the firewall. But hey - it balances great just like that. Looks weird but it works well. Hasn't flown yet. Am waiting for ESM electric V3 retract upgrade.