Battery fpr PC1550

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I've measured the voltage from the battery and it's only around 13.9V. I
also got a trouble condition light the other day and it pointed towards "low
battery". The battery is supposed to be at 16V - does a 13.9 reading usually
mean it's on it way out and I should replace?

Are these special betteries? I've never seen them at Home Depot or any other
such store.

Would appreciate an opinion on the battery - the manual doesn't say when it
should be replaced, and as far as I know it's around 4 years old.

TIA




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Re: Battery fpr PC1550

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13.9 Volts charging is a tad high but in the "ballpark".  The battery's a
"sealed lead acid" type with nominal voltage of around 12.4 to 12.6.   A
good "float" charge voltage is around 13.4 to 13.8. You can test your
battery by disconnecting AC and measuring the voltage drop under a load.
Sealed Lead Acid (or "Gell Cell) batteries are available at "Rat Shack" but
they're on the expensive side there.  It's best to go to a local electrical
or alarm wholesaler where you'll pick one up for around 12 to 15 bux.




Re: Battery fpr PC1550
Home Depot or Lowes has them.

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Re: Battery fpr PC1550
you can't go by measuring voltage.

we get 3 years on a 12v 7amp on some panels almost 5 years on others...the
average seems to be closer to 3 than 5 though.


Fry's Electronics, Battery Patrol, Batteries Batteries, Batteries Plus
etc...specialty battery stores...or how about your alarm company?

If your panel is telling you Battery Trouble or Low Batt...you should usually
trust what it says.



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Re: Battery fpr PC1550
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The battery is supposed to be charged to around 13.8 Volts.  That much is
normal.  However, the battery also needs to have sufficient amperage to
power the system for at least 4 hours (this varies) during a power outage.
The panel is not telling you that the voltage is low but that the battery's
ampacity has decreased below an acceptable level.  This is a normal event.
Batteries get weaker with age and need to be replaced periodically.  Since
the panel is indicating trouble, replace it now.

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They're available at some hardware stores.  RatShak used to carry them and
might still.  You can also order one online (I sell them) if you like.

--

Regards,
Robert L Bass

=============================>
Bass Home Electronics
2291 Pine View Circle
Sarasota · Florida · 34231
877-722-8900 Sales & Tech Support
http://www.bassburglaralarms.com
=============================>




Re: Battery fpr PC1550
The battery for a PC1550 should be a standard 12vdc (volts DC) 4 amp/hour or
7 amp/hour battery. It is NOT a 16 volt battery. 13.9 volts is within the
proper range fully charged. It's not a terribly "special" battery- just a
sealed lead-acid batt. that is common in modern alarm systems for backup
operation. If it's 4 years old, replace it- 3 to 5 years is about right. You
can find them at Radio Shack, and I've seen them in a few other hardware
stores, but if you want a good price on a "fresh" battery, I'd shop an
online vendor that sells lots of them.


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Re: Battery fpr PC1550
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Thanks for all the replies! My mistake on the battery rating, 12V 4Ah is
correct, just checked the manual. Will replace the battery in the next 2-3
days.

Cheers!




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Re: Battery fpr PC1550

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If you think you can fit a 7 AH battery into the can, then that would be
better (give you a longer backup in the event of a power failure).  Some of
the older 1550 cans were quite a bit smaller than the standard can they sell
these days so the bigger battery might not fit.  :-(




Re: Battery fpr PC1550

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of
sell

Sure it will, I did it many times




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