Double the battery life of the DX3 Radio from Spektrum for under $20

Step 2 Removing the back case

There are 8 phillips screws, as indicated in the picture. Remove them. You do not need to remove them all the way from the case if your good. If you don't think your skills can pay the bills--remove them, and put them somewhere safe. Preferably inside something you can close so they won't scatter under the workbench. If I had a nickel for every screw I lost...

Also, you will want to be very careful about the antenna wire, which is attached to the antenna which is attached to the back of the case. I don't know why (I think it's an engineering flaw, myself) but such is life. It's very thin and fragile. Well, it's not really that fragile but you can break it if you gorilla it too much. Just remove the back and you'll see a grey wire going to a small golden connector on the PCB.

Using your fingernail, put it just under where the wire meets the connector at the PCB, and pull straight up. The connector will come off easily (if not, don't force it! just wiggle it and it will pop off) and then put the whole back case off to the side. See how you don't need to remove the screws? I told you I was good...