Is it possible to replace the battery of the LEGO Dino Attack T-Rex head?

T-Rex Head

There's a button on the top of the head that makes the eyes and tongue light up red, presumably via a red LED.

There doesn't seem to be any obvious way to take it apart like other light-up LEGO elements from the era. Is it possible to disassemble this element and replace the batteries?

  • There is one head on Bricklink with empty battery. Maybe there is really no way to replace it? I don't have this head, do you know where exactly the battery is located? – Aziraphale May 4 '19 at 7:45
  • @Aziraphale I'm pretty sure it's somewhere in the black top piece, but otherwise, no I haven't tried forcing my way into one yet to know where exactly it is. – Alexander O'Mara May 4 '19 at 7:48
  • I'm tempted to purchase one of these just to see if I can figure it out. I guess if it breaks we'll have our answer :) – JohnnyB Jul 19 '19 at 23:04
  • Look closely at the dino's head. Here you can see little aperture that splits T-rex's upper jaw on half. On this picture I'm showing you what I mean. i.stack.imgur.com/Bfd4v.jpg I think that's the "ticket" to replace battery without destruction, isn't it? Just use pocket knife to open. Will it work? – Stanley Apr 26 at 10:26
  • No, but I'm going to buy one set and try. – Stanley Apr 27 at 5:36

Unfortunately after attacking this piece from every angle with some plastic opening tools, I'm quite certain there is no non-destructive way to open this piece.

I tried slipping a spudger in every seam where the plastic joins and was unable to find anywhere I could get any leverage, or even push it in more than a few millimeters.

Even the jaw piece is held on by a cylinder of plastic running from cheek to cheek. There isn't a good way to photograph it, but here's an illustration to show you what I mean.

enter image description here

Based on this experience, I believe it is held together by single-use plastic clips that snap into place on the inside without any way to detach them, short of breaking them. I do not think it is glued together, because the two halves do shift a tiny amount under pressure, and some points were much more resistant to inserting a spudger than others (perhaps because a clip is in that area).

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