HAI Omnipro2 battery trouble

I recently started getting a Battery Low / Trbl Now reading on my OP2 and so have swapped out the battery. The problem is that the new one is also showing a reading of 155 and a Trouble condition. What's the best way to begin troubleshooting this?

Does the battery have a fuse?

no, it's a sealed unit. the shop tested the new battery and showed me that it charges ok

Give it some time and see what happens.  When I have replaced a battery on my OPII it'll sometimes sit low or zero for a bit.  Never paid much attention to it.

cestor said:

no, it's a sealed unit. the shop tested the new battery and showed me that it charges ok

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I didn't meant to ask if the battery itself had a fuse but does the HAI have a fuse on the battery leads?

you mean whether the leads are fused? How could I test this. NB- presumably not, or the reading would show zero

I looked at an installation manual and there is a 4 amp battery fuse on an omni pro II but I can't find the location. I'm sure someone here will be able to help you with that.

There is no visible replacement fuse on the Omni Pro 2 panel.   I have had one almost exploding capacitor (the big one in the picture attached).  That I replaced but never saw any issues.  I have also toasted one OP2 board causing the area pictured to be a bit burned.  I never tried to fix it myself as there are no schematics to the board around for public consumption.
 
As stated above never seen the battery value go up immediately. 
 
I have never timed it and wondering if it has to do with the capacitor value.
 
One OmniPro 2 Homeseer user recently replaced an exploding battery (almost). 
 
The value never went up.  He disconnected the new battery for about a week or more; then connected it and then the value went up after a bit.  I personally assumed the board was fried; but it wasn't; cuz what he did worked (left the new battery disconnected for more than a week).
 
Guessing it was an issue relating to charging a bad battery messing a bit with the OmniPro charging circuit?
 

I just looked at the install manual again and noticed that there is a footnote that says the fuses are poly fuses and do not need replacement, whatever that means. Sorry for the confusion.
 
Here's the manual:
 
http://www.homeauto.com/Downloads/Products/AutomationControllers/OmniProII/haiprivate/20I00-2.pdf

Do you have expansion enclosures?

As Pete pointed out, it often takes a while for the system to recognize the new battery.

yes, 1 expansion enclosure , 1 wireless and 1 zone expander
my understanding is that a charge test takes place either manually through the console or otherwise every hour 

I've run into this issue before.
I replaced the controller battery and still had the fault, and it turned out to be the expansion enclosure battery in the garage.
Now whenever I get a battery low fault I know to check PCAccess first.
 
Check the expansion enclosure battery and fuse.
The Expansion Enclosure uses a standard glass fuse, not the auto reset fuse like on the main panel.
 
The Console will show battery failure when either battery is bad.
If you go into PCAccess and look at the status it will show which one is causing the trouble condition.
You can do that at a console too, but it is laborious to navigate through the menus.

The battery on the expansion enclosure is fine - reads at 230 in PC Access; it's definitely the main one that's the problem.
I got in touch with Leviton tech support and they responded that I should send the board in for repair. This is a major headache as I'm sure you can imagine, as I don't have a second board to install in the mean time. Any suggestions?

cestor said:

The battery on the expansion enclosure is fine - reads at 230 in PC Access; it's definitely the main one that's the problem.
I got in touch with Leviton tech support and they responded that I should send the board in for repair. This is a major headache as I'm sure you can imagine, as I don't have a second board to install in the mean time. Any suggestions?

Click to expand...

 
This may be a stupid question, but have you measured the voltage of the new battery with a multimeter?  A new battery should be fully charged to start with, but if has been sitting on a shelf for a while, it may not be.  If it isn't fully charged, I can see where it will take some time for the OP2 to get it back up to a full charge.
 
If it is below 13.2V or so, make a couple of measurements a few hours apart to see if the battery voltage is increasing.  If the voltage isn't coming up to normal levels, then something may be wrong with the charging circuit in the OP2.

yes, the battery has been in for over a day and still only reading 155.