Battery tray?
 

I am converting an Ofna LX/MBX/Comp to electric which battery tray should I use. I am going to be running 4s and 6s. Thanks in advance for your help.

What lipos are they? size of the packs?

Welcome to the forums!

Yeah, more information will be needed. As you can see in the store, there are several sizes of trays depending on what kind of pack you are using.

When choosing your tray, it is best to measure the lipos personally because the published sizes for lipos usually is not what they are in reality. Also, when choosing a tray, you might want a little more room in the front and back (especially the front) to add some foam padding to protect the packs during lawn-dart landings. :wink:

They are hard case and measure 39x43x140mm.