RE: Easy Star Battery Upgrade
What is the "C" rating of your lipo? It may not have the capacity to provide 10A. If this is the case, the solution would be a lipo with a higher "C" rating or a greater overall capacity (or both).
To get 10A from a 1200 mAh battery, the battery must have a "C" rating of at least 8.3. That's an honest 8.3C, not the manufacturer's rating which is often unrealistically high.
You can not "force" the battery to deliver more current by fiddling with the transmitter and ESC. It will only deliver what it is capable of providing, up to the amount of current demanded by your power system.
- Jeff