I'm not sure what you mean by de-spike but I have had my datatool immobiliser now for 4 years without any issues.
I also plug in my battery charger each time I put him away and have never had to do anything.
As far as location, mines situated under the tank on the right side of the frame. You can actually see it just under the front of the tank. Not that knowing where it is will make much of a difference will it. I'm no where near the instructions but perhaps try to push both buttons on the remote at the same time and see what happens. If that doesn't work, try de-mobilizing and then pressing both buttons. Let us know how you go and if no joy I'll fish out the destructions and see what they say.
