Need instructions for replacing battery

Question

Hey, all.
The "Replace Battery" light is lit on my ONT, and it is (of course) doing that annoying beeping noise.
Since the only way to permanently stop the beeping is to disconnect the battery, I'd like to do that.  Unfortunately, none of the instructions I've seen online, or gotten from Verizon customer service, have applied to my specific ONT model.
I have a Motorola ONT1000GJ2  (Yes, GJ, not GT, I've checked repeatedly).  I *think* the battery is in the upper section of the housing, but I cannot, for the life of me, figure out how to get to it.
If anyone has achieved this blessed state of affairs of actually getting to this battery, could you be so kind as to fill me in on how?
Thanks in advance!
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Answer 1

I am providing my own answer to this question, as the community didn't come up with an answer, and Verizon customer "service" (and I use the term extremely loosely in this regard) was the exact opposite of helpful.
Looking at the picture above, on the far right-hand side, there are two recessed hex-screws, one above the other.  To access the battery compartment on this particular model, leave the lower screw tightened, and loosen the upper screw.  Don't worry about it falling out: I'm pretty sure it's a "captive" screw, and so cannot be fully removed.
Once you have the screw loosened, pull outward on the upper right corner of the box.  You may have to lift up at the same time, if it hangs up on you.  (In order to lift up on it, put a finger or thumb in the screw's recess, and push upward).  Continue to jiggle and pull, and eventually the stupid thing will come open.  Once you've got it open, removing the battery and then the battery clips is the same as in the videos they've provided:  Pull back the tabs to slip the battery out, and then wiggle the connectors off the battery posts.
WARNING:  The battery is several pounds in weight, and the wires are not all that long.  If you have to stretch to get to your unit like I do (mine is mounted above my washer/dryer), you will benefit from a helper, so they can hold the battery while you remove the battery connectors.  I know I struggled a bit trying to do it alone.
Thanks to those who attempted to help me.  I hope this is able to help someone else in the future.
Oh, and one more piece of info:  Verizon "customer service" will repeatedly tell you the only official way to make the unit stop beeping is to replace the defective battery with a new one.  They have to utter the word "official", because otherwise, you can accuse them (accurately) of lying.  The unit will stop beeping as soon as you disconnect the old battery.  They, of course, want you to spend $30+ buying a new battery from them, so they will not tell you this.  If, like me, you have no desire to replace the battery, rest assured, the unit will stop annoying you once you've got the old battery out of it.  The "Replace Battery" light will remain on, but the audible warnings will end.