Question about APC Smart-UPS 1000VA UPS System

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I WANT TO CONNECT TWO APC UPS 700 VA UNITS TO SINGLE 24 VOLT BATTERY. BY DOING THIS MY INTENTION IS TO CHARGE THER BATTERIES RAPIDLY WHEN THE ELECTRIC SUPPLY IS RESTORED. IS IT POSSIBLE TO CONNECT TWO UPSs IN PARALLEL TO A SINGLE BATTERY

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You can't just charge batteries faster by giving them more power. You will likely blow up the batteries as they get hot due to the charging process. I agree completely with 12fixlouie, get a unit with more reserve capacity. You could get a spare set of batteries that you have on a "battery maintainer" (float charger) and then swap the batteries to get more time. Some units even allow this while on battery power (hot swappable). If the batteries could be SAFELY charged any faster be sure APC would have done it to make a better product ($$$).

Posted on May 25, 2010

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Waheed70, NO!!!! NO!!! NO!!! DO NOT EVEN THINK OF DOING THAT!!! You may cause catastrophic failure to not one but both APC ups units and will void any warranty you might have!!! If you are in need of longer run time on battery back-up, then start looking into buying an "ONLINE" ups system somewhere in the 5 to 10 kva range. Check out "chloride" systems and "powervar" and "toshiba" and "ONEAC" for info about "true online" battery back-up systems. Bye for now. 12fixlouie

Posted on May 04, 2010

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Inverter fault


This unit will require you to Brain dead the whole UPS.
To see if it is actually a condition that exists with the hardware or if it was just a lock condition.
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3)Unplug from wall

4)Leave unplugged for about 5 minutes or so WITH NO POWER AT ALL.

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How do you check the battery status?


Check battery voltage using Volt meter=> it should be about 12.6 to 13.8 vdc.
Pull the battery out... checking the deforming at the case ..such as "swelling"... if yes .. replace the battery.
Replacement battery is about 10-20 dollars on e-bay (watch for shipping charge and size. and terminal connection sizes )
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One I had my local Autozone checked my 12 VDC -8 AH ... ask them to set CCA at about 100 AMP...
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you may need to replace the batteries -- turn the UPS around and take the screws off from the compartment and remoive the battery -- call a battery distributor and ask them to sell you the same type of battery.

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It is possible to attach the 120 AH battery with APC 1000 va UPS


YES IT IS POSSIBLE TO CONNECT A LARGER BATTER TO THE APC UPS. IT WILL ONLY NEED MORE TIME TO CHARGE THE BATTERY.

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My apc ups do not charge batteries it is su 3000 working wel but do not charge batteries


Your battery lifespan is probably over, (3-5 Years) or the battery could have a dead cell in it, my suggestion is to replace the battery. it should be a 12 volt 7 amp hr battery or a 24 volt pack that you will have to get from the manufacturer 

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