Question about Minuteman Office Plus 500 UPS System

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Battery Not Charging

Hello, I just bought this back up system and it's been plugged in for over a day now and the yellow "check battery" light is still on. I've tried testing it by pulling out the plug and everything shuts off and the battery doesn't won't anything running. Thanks, Paul

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Re: Battery Not Charging

May be fuse blown off,either battery terminal forget to properlly fit,

Posted on Aug 31, 2007

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Blinking red and green lights

Check battery and charging voltages. APC says 90% of faults are a dead battery. My experience also

Oct 15, 2014 | APC Products - APC - Back-UPS ES 750...

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How do you connect 200897 battery, it is no longer working

I just bought a battery (readily available) for $16 and here is how I replaced it, but first, make sure UPS is disconnected from 120 Volt service. (Old battery number SW1233 with F connectors.)

Turn the UPS over and look for 1 tiny screw (even with the "in" telephone wire socket). Remove the screw (turn CCW). Push the button marked push, then slip a steak knife or sharp putty knife into the joint in front of the screw hole. Twist the tool enough to start the battery cover moving backward (to your left).

The battery is upside down. Lift it high enough to grab wires and pull them off the postst.

Verify battery you bought fits the housing. With UPS upside down, place battery on right side with lugs toward the power cable. Push red wire onto red post. Hold the battery upside over UPS. Push black wire onto black post.

Visually ensure the wires both run in their channels (otherwise the battery will not seat and the cover won't slide on.) Push battery into slot until it bottoms.

When the battery is bottomed properly, hold the cover about 2/3's over the battery housing, push it down, then push it toward the screw hole (to your right). If this operation, or the cover jams near the screw hole, check the battery. It must be absolutely bottomed in the slot. The cover won't go on easily even when everything is perfectly aligned.

After the cover is closed and the screw replaced, plug the UPS into a wall socket. The on/off button has a mind of its own, so ignore it. The green light may light and there is one beep. The backup yellow light may blink. The green light may stay solidly on. Pull the cord plug out of the wall. Now the UPS green light may go out and you will hear a ratcheting sound (the UPS is making AC from the 12 Volt battery current). Because you have no device plugged into a "battery-backup" plug, the UPS will shut off automatically in a few minutes.

The last test is to reconnect the plug to the wall service, then plug a monitor, a music system, or something similar into a Battery B/U connector. The green light should light. When the UPS is again unplugged, the yellow light (Backup) flashes and there is a repeating beep. Plug UPS back in. Only the green light will be on. That's it, all done.

I use Newpoint UPS to back up my telephone/modem. During a brownout, SPS powers those units almost 2 hours.

Note: This UPS is not suitable for powering or charging Laptops because the power output is too dirty.

R Hicks

Oct 22, 2013 | Newpoint (200897) (DHN200897) UPS System

1 Answer

My inverter (500 va) (battery based electric generator for power backup) keeps on charging batteries even when the charging light goes off making the inverter, wires and battery very hot.

This a possible failure of the voltage detection circuit in the inverter main board and requires the fault be identified by checking the voltage/current feed/limiter to the battery.
Once when the battery voltage has reached the threshold set up the charging should stop and then the circuit will analyse the voltage on the board to trigger the charging to be put ON.
This can be a failure of the detection circuit and if not checked can damage the battery.

Jun 20, 2011 | APC American Power Conversion Back Ups Es...

2 Answers

Hello sir, I don't actually know how to charge my apc cs 650... and And when the power is out, so does my computer.. low battery.. I just need a simple answer about this.. is it not charging? or do i need...

If you connect the control cable to a PC and install the PowerChute Personal Edition V3.0.2 f software you should be able to see if it is charging and what the percentage of charge held in the battery is.

On the CS 650 the lowest power connection is the surge only powerpoint.

To give the battery a full charge or to test it you can connect it to a car battery trickle charger, as it is a 12 volt battery, rthis will at least mean you can check that it holds a charge in the first place.

Dec 23, 2010 | APC APS BackUPS CS 650VA 400W 230V DB9...

1 Answer

I have a CyberPower 725SL UPS. Shortly after turning it on, it will beep as if AC power was lost and the green light goes out. I checked the battery and it's good. I'm assuming something went bad with...

Couple different items to check.
  • Try letting the unit set ideal for overnight charging the battery. Do not even turn the unit on.
  • Replace the battery.
If you turn the unit on when the battery is plugged in and does not keep a charge you can almost be sure it is the battery or the charging circuit not maintaining the battery.

Nov 11, 2010 | CyberPower 725SL UPS System

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Have brand new APC 900 UPS and when plugged in, both green & yellow indicator lights flash. Non-stop. Left unit plugged in for 18 hours (off) to charge battery as info sheet suggested, but lights still...

Nope! The internal battery is not plugged-in correctly. Unplug the APC unit and open the access door to the battery (it is not dangerous to do).
Re-seat the two wire clips (red & black) to the battery. The positive post has a red mark on it.
Close it up and charge for a few hours before using.

If the symptoms continue, return unit to store.

Sep 19, 2009 | APC Back-UPSĀ® XS 900 (BX900R) UPS System

1 Answer

Apc ups flashes red light to replace battery, but battery is new

i think by replacing the battery has not been the solution to the problem

u need to check the battery charging voltage when turned ON with main electricity, if no voltage present from charger, there is no question of battery getting charged and also once the battery is down with charge it may not re charge hence the indicator and alarm.
recomended to nearest service centre

Mar 26, 2008 | APC (BE500U-WEB) (BE500UWEB) UPS System

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