those 3s packs can handle 136.5 continous amps<div>the mt4 motor gives out a maximum of 1350 watts which is equal to 61 amps on 6s</div><div>
</div><div>So its looks like it should work and fit well, although, you can find better for that price. </div><div>
</div><div>If you use those batteries, you will end up with 2 battery connectors that need to connect one esc connector, you will need a series adaptor like this</div><div>
</div><div>http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXNKY9&P=7</div>