dei 520 battery backup

The heat shortens the lifespan and performance of batteries period. Especially in cars. Or needless to say it is hard on them. They may say 4-5 battery but in reality here in the desert, you're lucky to get 2.5 years. I am trying the redtop optima battery for my car. And thus far in a year, no problems yet. I went through 2 520ts in less than a year on my alarm.

in my camaro, my red top optima lasted 2 years. in my silverado, my yellow top died in less than two...

CAN'T see the pic...can anyone else?

Apparently the images were removed.

anyway, how's it working thus far?  any boiling batteries or anything of the sort?

I take it you are being sarcastic. I just finished the install tonight. I placed the back up battery in a cut-out of the foam padding under my back seat..which is also supported by a fireproof/heat type padding that rests on the base of the car to protect the pull out back seat/foam padding . I located it here since anywhere under my dash or center console gets hot..and is conspicuous. I extended the wiring along the side panel in looming, and tied it in to the connections at the diode box and junction plug...which is located in my pass kick panel. I tested the voltage of the backup batt and it rests at 12.8 volts. Armed the alarm, and disconnected the power supply at the battery and the alarm went off full power. If I can figure a way to shrink the pics.. I will re-post.  

sarcastic, some, yes.  kudos to you for getting it to work right.  sometimes i tinker around with things and get failed results.  things don't always work as we would hope.  glad it's working for you.  as for myself, i'm STILL debating what to do.  may end up doing what you did or i may still just leave it out altogether.  thanks jcs.