Question about Powerware Best Power Fortress UPS System

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How to hook up the battery to Best Power UPS Model ME1.4kVA ? I have an used Best Power UPS Model ME1.4kVA without battery. I opened the case and find three wires as below: A. one each short #2 wire goes to fuse with (+) maker .. I assume it should be connected to Positive (+) of the battery. B: two each about 12 inch long #4 wires.. one connect to a board terminal E4 ; another one connected to other PC board terminal E17. I assume these two wires will be connected to the Negative (-) post on the battery. Would you or somebody please confirm this. user "Nobudgetprod" on July-13-2010 having a same model I wonder "Nobudgetprod" could help to verify this by open his UPS and look at his. Thanks

Posted by Chu Nguyen on

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  • Chu Nguyen Feb 11, 2011

    I just talked to Eaton - Best support.. Yes the :A. one each short #2 wire goes to fuse with ( ) maker .. I assume it should be connected to Positive ( ) of the battery. B: two each about 12 inch long #4 wires.. one connect to a board terminal E4 ; another one connected to other PC board terminal E17. I assume these two wires will be connected to the Negative (-) post on the battery.
    that is correct.. The problem is solved.

  • Chu Nguyen Oct 05, 2011

    Dear "RAY" -Nobudgetrod.
    Can you give more details about adjusting charging battery at 13 volts ie: location of board or adjusting pot number on board. ... any drawings or pictures will be greatly appreciated

  • Anonymous Mar 25, 2014

    am fixing a new board for best power 610 some one had removed the old board so i need to know the connection points for all the wires
    Thank you so much

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Ray Jones

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You are correct the Positive (+) is the fuse and the other two (orange in my unit) wires both go to the negative (-). Also your battery should be at least 12V 75AH dry cell with a holding voltage of 14V when charged, a standard battery will not work, the unit will boil it dry. This will give a 5 min run time at 75% load (115V 9A continuous).

I changed the units configuration to use a 12V 750AH wet cell by changing its holding voltage to 13V, adjustable on the charging board (the outer most board when the cover is off that is). By doing this the battery costs about $75 not $140 and I get a run time of 4 hours 30 min. at 75% load. My entire office is floating on this unit. Also this unit will require a house current voltage of 105V-125V on a 15A breaker. Yes house current varies all the time by +-10 volts. and unit will use about 10A when running at 75% and charging. The normal output at full load for this unit: 115V 11A. continuous, ( the computers in my office pull 7A to 9A when they are in use, idling at 4A when not in use. So when the power fails I just keep working.

Another thing to note with the new configuration for a wet cell battery, monitoring software will initially show a low run time of 3 to 5 min., but after the unit runs for about a minute on battery the software will adjust to the real run time. So set low battery shutdown for about 2min and the software will work fine.

Ok a little background about the 1.4KVA Battery Backup from Best Power Tech. When I purchased this unit some time ago, it carried a double lifetime warranty good up to $250,000. Not bad for a $2,000 unit. What that meant was not only would the equipment protected by the unit survive a hit, but the unit will also. So far this unit has handled 17 blackouts, over 40,000 line spikes (Voltage greater than 125) and over 3,000 brownouts (Voltage less than 105) and maintained a constant 115 Volt output. (Sub note here the unit beeps while a brownout is in progress, because the battery is being used to help maintain Voltage.) Also this is the same model used at the Kitt Peak Observatory in Arizona. I was encouraged to call and talk to them about the unit, very impressive track record!

Ray
No Budget Productions

Posted on Sep 24, 2011

  • Ray Jones Oct 06, 2011

    it is on the PC board closest to the outside of the unit and on the leftmost side of that board just under the small transformer and next to a capacitor, on my board it is red with a white center. check the voltage across newly installed and charged battery as you turn this control clockwise, it will start at 14V and the charging light for the unit will go out just as you reach 13V.

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In my home using 100AH battery for inverter , want to know wht happens if the baterry is not connected to inverter ? Is battery life decreases..? or WHAT ELSE WILL HAPPENS TO BATTERY ..? plz give an...


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A true UPS requires a battery to be connected to the inverter at all times. Mains power is used to charge the battery constantly and battery is required to continually supply power to the inverter which then converts the voltage to mains supply voltage.

A lower powered and cheaper type UPS areswitch-over types, when the mains supply fails, the UPS switches over to thebatteries and the inverter in milli-seconds which then supplies mains power to thecomputer and peripherals.
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If that isn't the case, it sounds like the UPS battery is bad. Here's something to try:

1. Shut the UPS off when this happens.
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3. Start the UPS.
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7. Then, if the alarm goes off, you've confirmed that the battery can't take the load. So, it'll need to be replaced.

You can obtain ups batteries just about anywhere. (e.g www.planetbattery.com) All you need is the model number off of the battery and you can order a new cartridge. Make SURE the battery looks like and has the same voltage as the bad one to be sure your new one will function properly. Your manual should cover opening the battery door and replacing the battery.

Regards,

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When using Laptop om=n mains the battery is always there in case you lose power or somehow the lead gets pulled out inadvertantly, so you will not lose work.
I use a laptop all the time for work just got a new Latitude D630. The battery in my old lappy is still good for 2hrs+ and never been removed.
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