Will liposuction be enough to take care of my batwings? (Photo)

Hi, thank you for your question. 
Based on your photos, I believe you would have a better result with a brachioplasty procedure than liposuction alone. Your "batwings" are a combination of excess fat and excess skin. Liposuction treats the fat only. Given your excess skin, if you only remove the fat with liposuction alone, you will be left with significant skin excess. This will leave you with a suboptimal result. 
An evaluation by a board-certified plastic surgeon will help you navigate to the correct intervention for the ideal result. 
I hope this helps. Good luck in reaching your aesthetic goal! 
 

Based on your age and amount of arm skin, I have doubts about lipo getting you as tight and smooth a look as you may desire. I would expect some sagging and skin irregularity after lipo alone of this area.An arm lift in my opinion would be better, but it is a more involved scar.