Hi Joe,

Depends really . . you have a Wind 110, right ?? Is it 8S or 10S??

A friend of mine flew the Wind 110 in F3A with Rhino 3700mAh and it was fine. He started with 8S but wasn't that happy with it. He upgraded it to 9S (yes 9S ! ) and finished with 10S . . all 3700mAh Rhino packs. He then went to 10S 4900's, but only because he had them and liked the way the Wind 110 flew with the extra weight.

If you are using 10S, 3700mAh Rhinos should be fine . . If you are using 8S, the 'cheap' 4000mAh packs may be border line. Of course you can drop the current draw, but you probably wouldn't be happy with the performance then . .

JB