Question about Belkin (F6C1500-TW-RK) (F6C1500TWRK) UPS System

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Belkin ups not working properly.... green and RED light on ...indicates bad battery. But unit not more than 1 yr old, no battery time at all when plug pulled...not enen i min on (desk to an d monitor

UPS not working properly. Belkin 1500 (f6c1500-tw-rk). Red light on full time .. along with green. System has no 'on battery' time with minimal load...not even 1 min...not 10 secs. The batteries can not be that shot unless the charger was bad. Any suggestions? Had a similar problem with a APC and just replaced it. Any ideas??? Thanks -

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  • dancour Sep 08, 2008

    Same problem here with new setup.

  • rmm2 Mar 13, 2009

    Same problem with a an F6C1100-UNV with brand new batteries measuring 26.5V. Charger puts out 27.2V, so I don't think it's a charging issue. Under no load, if I pull the plug, the unit beeps, the yellow inverting light comes on for half a second or so, then all lights turn off. All the while, the battery remains at >26.5V. There are two 12V batteries in this UPS.

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Your batteries are weak...(causes
1:-not powering the UPS for a longtime
2:- long use(3 to 4 years) )...you will have to replace them
PLEASE RATE ME.................

Posted on May 25, 2008

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12v 7ah batteries have a 2-4 year life span.. most websites claim about 260 deep cycle dis/recharges although ymmv.

Make absolutely sure you've re-wired up the ups the way it should be (ie in series-- not parallel).they are in series, not parallel. ie, each cell produces 12 v so
wire the two so that the pair produces 24 v, the (-) terminal of the
first cell to the (-) connection in the unit, the (+) terminal of the
first cell to the (-) terminal of the second, and the (+) terminal of
the second cell to the (+) connection in the unit.

Or in other words:
+ of unit to + of top battery
- of unit to - of bottom battery
then connect + of bottom battery to - of top battery.. this completes a series circuit with both batteries.

Posted on May 17, 2010

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Greetings Gurus. I have Makita charger model DC18RC, battery model is 18v BL1815...manual is of limited help. I'm trying to understand what the indicator lights mean, what the time is for charging,


I agree that the pictographs are not very helpful. You probably have one of the new chargers. I have an old one, which is a little easier to figure out.

From top to bottom

1. The flashing green light with the electric plug indicates that the unit is plugged in and ready to go.
2. The flashing red little fan means that the battery is too warm so it is just cooling it and not charging it at that moment.
3. The solid red empty battery outline means that it is charging but hasn't got very far, less than 80% full.
4. The mostly full battery outline with both solid red and green lights at the same time means it is 80% full or more
5. The full battery outline and solid green with the musical notes means it is full up.
6. The broken battery outline with flashing red and green means you've got a broken battery.
7. The yellow light with the wrench means the charger is "conditioning" the battery, whatever that means.
8. The yellow light with the fan means "cooling abnormality."

Hope this helps

Nov 01, 2014 | Drills

1 Answer

Red light flashing on charger


A red light indicates the charger is charging the battery, an amber light means it has switched from fast rate charging to trickle to keep the battery topped off, and green would mean the battery is completely charged. But don't be fooled waiting for green, many times the charger will only be on green for a moment before changing to amber and keeping the battery topped off.

Flashing can be a sign of a problem on some chargers.

A rapid flashing red can on some chargers indicate a bad or shorted battery, or a bad battery contact in the charger itself. If in question, try a different battery on the charger or compare with another charger to determine if the blinking is normal.

Best regards.

Nov 19, 2013 | Motorola htn9042a charger,120v,single unit

1 Answer

My Belkin F6C1500-TW-RK UPS DOES NOT LIGHT UP (PWR ON) WHEN PLUGED IN, USING NEW BATTERIES.


I returned from a trip to find my F6C1000W-TWRK and all devices powered off with no lights. Tried to reset the AC breaker on the back but it wasn't tripped. I confirmed good mains power then tried to power it on by holding the main power button but no action. removed the batteries (2x 7AHr 12V sealed Pb-acid) and confirmed one was 0V and the other around 2V. I attempted to charge each indpednatly on a Jusni iCharger but both wouldn't take a charge.

As this seemed suspicious that both batteries would fail simultaneously, I took the unit apart and found the two 40A on-board fuses for the DC lead intact. Then on inspecting more, there was a distinct brown discoloration around the large aluminum heatsink with "IG0" component mounted under it (and presumably "IG1" but I didn't dismantle further).

Bottomline is it appears this component can eventually overheat (likely due to an electrolytic going bad and stressing it beyond it's thermal limits until it finally fails).

I haven't attempted repair as new quality batteries are approx $60 shipped so I am going to buy an all new unit.

If anyone attempts repair for this failure mode, please post back your experience.

Thanks !

Mar 02, 2013 | Belkin (F6C1500-TW-RK) (F6C1500TWRK) UPS...

1 Answer

Replace the 2 bulbs. Unit powered up correctly and turned on like normal. Then Lamp1 and Lamp 2 indicator lights blinked (Indicating Start UP). After some period of time, it switched to Red 6 times blink...


1 red blink every 2.5 seconds indicates a cover error-- for this check the lamp cover
2 times red blinks very 2 seconds indicates temperature error. for this let the projector cool off check filters and fans that there is no blockage of air for proper cool down
3 red blinks every every 2 seconds Power error. incorrect voltage input or internal malfunction.
4 red blinks every 2 seconds indicates Fan Error check the fans make sure they are working and not blocked or need replacing.
i have nothing on 6 ligths go ahead reconect and check for proper count. hope this information helps.
Best of Luck.

Ray.

Jun 05, 2011 | Sanyo PDG-DXT10L Projector

1 Answer

I have a Belkin F6C1500-TW-RK UPS that requires two batteries - the D5779 model. My question is how do I replace the batteries in the unit. I no longer have the user manual.


You can download a user manual from the Belkin WEB site.
http://www.belkin.com/support/article/?lid=en&pid=F6C1500-TW-RK&aid=8381&scid=2

May 29, 2011 | Computers & Internet

1 Answer

My question is related to an Invacare-Nutron R51.Production date 1-7-03,joystick[MKIV R11] flashes red 1 time, than green 5 times repeatedly? Can you please tell me what this means.?


Ranch well the red flash indicates a low battery and the 5 flashes indicate a bad left brake. Now try charging the batteries until you get a green light on your charger then turn on the chair it shouldn't flash the red if the batteries are accepting the charge. If your batteries are 2-3 years old it could be time to change them. If Medicare paid for your chair then they will pay most of the repair costs. You can contact your provider for help or a service company like Roadrunner Mobility @ 1-800-467-2668 or Repair Xpress @ 1-877-581-3733. If Medicare did buy the chair then you are eligible for a new chair every 5 years and yours is almost 8 years old. Contact a local provider that you trust to check into getting you a new chair. Hope this helps you

Sep 29, 2010 | Invacare Pronto M51 Power Wheelchair

1 Answer

Not holding a charge can it be repaired or better to replace?


If your UPS is not holding Charges, this means that the Battery does not carry the load when AC fails. Check to see that the batteries are okay by testing the individual batteries on load using a potentiometer load with multimeter. If the battery voltage drops below 10V replace the batteries and your UPS be okay

Jun 08, 2010 | Belkin (F6C1500-TW-RK) (F6C1500TWRK) UPS...

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