I have to replace batteries for my cyberpower ups 900avr, the wiring to the batteries are:1 red that goes to red, 1 black that goes to where and 1 blue that goes from battery to battery. please help I don't want to burn my batteries

the batteries are wired in series, meaning two 6volt packs are wired nose to tail so they can deliver a full charge, OR they are wired so that both are in parallel, and each pack contains 1 Ampere-Hour of energy at 12 VOLTS and you use 2 packs to get 2 Ampere-Hours of "CHARGE". What your significant other has to get before he connects the wires back up , is a VOLTage METER to verify the polarity of the wires coming from the adaptor. It USUALLY is RED for positive, BLACK for negative........ but not always....... measure to be sure, then double check.

IF it is two 6 volt cells that are connected in Series, then the red of the first pack goes to the RED WIRE of the adaptor, then the BLACK WIRE of the first cell goes to the RED WIRE of the second cell and the BLACK WIRE of the second goes to the BLACK WIRE of the adaptor.

*Your mileage may vary, not intended to give professional advice, all actions are at your risk, Federal Deposit Insurance will only cover cash deposits at Federal Registered Banks. Colours may fade over time. Always call a friend when you need the answer.

Hi droger68,

The reason for the issue that you have right now with your Cyberpower 525SL is a bad battery. This means that some of the battery relay's component or relay has failed. You may contact the manufacturer if it's still under warranty. If not you may check this site they do have battery for your machine.

Hope this helps.

Thank you for using FixYa.

inside your unit there are 2 power boards that convert a lot of current to and from the battery - complete failure on one of theses boards is a common problem and it's a terminal one.
if the mains power board has failed then yes, it has indeed overstressed the wall plug and you will have to completely replace it as soon as possible.

It may not be dead yet. Does it supply output? You have not mentioned. It would be considered dead if it does not give any output. Is the battery fine? If the battery is fine and there is no output then it may be dead.
So, check the battery for any sign of life.
Check the output.
Check output with it plugged into mains.
If all are negative then it is dead.

As a general rule, the green wire would be the signal wire to the ignition, the reds are ignition power, and panal illumination. The blacks would both go to ground.

Atypically if this is an older unit what you have is an issue with the battery. It will no longer hold a charge.

You will nee d to go to the vendor site and look for a replacement battery.

In some cases it may be less headache and cost just to buy a new one.

check out this picture, it shows the 2 batteries wired up.

Notice that the batteries are flipped opposite of each other.
So from left to right its: bottom red, bottom black, top black, top red

http://www.pcstats.com/articleview.cfm?articleid=1092&page=2

Between the 2 batteries there is 1 red to black connection.
Then black to black-wire to circuit board
and red to red-wire to circuit board.

It sounds as though the UPS is not receiving power. Check that it's cable is properly plugged into the wall. Also verify that it's internal ground fault interrupter has not tripped, it's usually a little red button on the back of the unit, it should be pressed in and should stay that way, if it pops out then there is a problem with the ground of your electrical outlet. Also check that the breaker for that electrical has not tripped at your fuse box.

Since the UPS is not receiving power the batteries have discharged and that is why your computer cannot start, there is not enough juice from the UPS to boot it. That is also why it is making a noise as most UPS's sound an alarm to indicate that they are not connected to power.

There is a chance that the batteries in your UPS have gone bad or that something has become faulty in your UPS. Try plugging your computer and monitor directly to the wall bypassing the UPS to see if they work fine.

I have the same problem.
It is most likely the battery.
I tested my battery on a Shumacher trickle charger, and the battery wouldn't hold a charge.
This is a common problem with UPS systems that use sealed lead acid batteries.
The longest life that you can expect with these types of batteries is 5 years MAX.
The battery can be replaced with a Radio Shack 12V/7200mAh Lead-Acid Battery
Model: CNB-GP1270F2 | Catalog #: 23-9030
Here is the link for the UPS users manual.
http://www.cyberpowersystems.com/user-manuals/CP550SL_UM.pdf
To replace battery, (unplug AC cord), turn the UPS upside down on floor or workbench.
Remove the 6 deeply recessed phillips screws, then pull the bottom off.
Remove the wire leads from the old battery (pull on the connectors, not the wires). Install new battery (red wire to red or + sign) and replace the bottom and screws. Careful, tighten the screws finger tight (plastic strips easily).
Plug in UPS and you should be good to go.
Hope this helps

I got lucky with my cyberpower 1000. Found that the black wire from the outlets to the board was not tight enough. Squeezed it a little with my pliers, and it works now. Don't worry about the on-plug falling out, you can push it in from the outside when you're done.