Question about Dewalt DC920KA Heavy Duty Xrp 18V Cordless Drill/Driver

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When I put the battery to charge the red LDc flashes as normal but then speeds up and flashes fast. The battery does not charge! any ideas?

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The battery is bad, the fast flashing red indicated an internal short in the battery or it is consumed and needs to be replaced.

Posted on Nov 19, 2009

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Posted on Jan 02, 2017

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Hi. My vax blade won't charge. The battery icon keeps flashing red and White any ideas?


flashing red just says turn it off because the battery is getting low. i guess thats cos it wont charge. wait 1 hour for temperature to become normal. wash filters and wait 24hrs til they are dry.check and clean battery contacts. those are the things the manuals list to try.

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Red light flashing very fast and not charging fully


How long is it charging until the light goes from flashing red (no charge) to yellow to finally green (full charge) ? If it's not at least 2 hours, sorry I don't have my Roomba papers available, so I'm guesstimating here, it's not getting a full charge. If you can put a voltmeter on the " fully charged" battery pack, that might tell you if the charger is the problem. Clean off the metal contacts where Roomba meets the two metal contacts on the charger. Also just because a battery pack or set is new doesn't mean it's functional. I had a new Apple battery for my laptop that didn't work when I replaced an older one.

Sep 26, 2014 | iRobot Roomba 530 Robotic Vacuum

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 Duracell battery charger has a blinking red light.Use to be a constant red then green when it was charged. Now, just red..then blinking red..then not at all.


I had the same problem with flashing red lights. Both sides on a four battery charger. I swapped the batteries to another charger and the batteries were fine. They charged normally. I put some different batteries in the charger and the same flashing light situation. Those batteries also charged normally in a different charger. I looked closely at the back of the charger and, low and behold, "made in China". Why does that not surprise me. The bottom line, it may not be a battery issue.

May 08, 2010 | Duracell NiMH AA/AAA Battery Charger with...

2 Answers

Battery flashing when charging why?


If the red light is flashing after inserting a NP-20 battery in the Casio Lithium Charger BC11-L, it means that the battery will not take a charge. Normally when putting the batterry in the charger, the light will be a constant red. After charging is complete, the red light will go out. Battery is then fully charged and ready for use.

Mar 19, 2010 | Casio EXILIM ZOOM EX-Z60 Digital Camera

1 Answer

My glowbouy flashes green and red...what does this mean


According to the owners manual for these swimming pool lights, this is what each colored indicator means. Hope this helps.


Solid green
The battery pack is fully charged.
Slow flashing green
The battery pack is almost fully charged.
Slow flashing yellow
The battery pack is half charged.
Medium flashing yellow
The battery pack is less than half charged.
Fast flashing yellow
The battery pack has almost no charge.
Fast flashing red
A charging error has occurred and the light should be unplugged and then plugged back in. If the Fast Flashing Red persists after several attempts, the battery condition is questionable.



Also in the trouble shooting guide, it mentions this:


Problem: Red Indicator Light Is Flashing While Charging

Solution:
A red flashing indicator light when charging indicates a selftest
error condition. Unplug the product and plug it in again.
Try this several times; if the indicator light continues to flash
red, unplug the GlowBuoy and take it to an authorized service
depot.

Oct 22, 2009 | NRS CANTAR GLOW BUOY FLOATING POOL LIGHT...

1 Answer

Flashing red hand keeps popping up, when batteries


The flashing red light is warning you that the shutter speed will be too long for handholding the camera. Put the camera on a tripod or other stable surface, and/or use the flash.

Jun 05, 2009 | Nikon COOLPIX L18 Digital Camera

2 Answers

12v drill/driver not holding charge


sounds like the batt as had its the same prob as i had with mine to give it a bit of life so it will charge get hold of a bigger batt and two bits of wire and connect the + to + and - to - and it should charge but it prob will run down quick

Mar 15, 2009 | Dewalt DC727KA 3/8" 12v Cordless...

4 Answers

Flashing lights


I had the same problem. 1 of four way's can fix it. #1 Put a batt. that has a little charge in that flashing spot 1st. and see if that works. #2 put the batt. in that flashing slot first and then in the 1st slot, If that did'nt work, #3 Put Batt. in backwards for 1 sec. in and out fast. and I do say very fast, In that flashing spot. #4 buy a new one. The one that fixed mine was #1 and it stoppppped flashing, The order I put them in was - 3-1-2-4 I put in #3 batt. first, it was the one flashing And it worked, You may have a bad batt. or it's on it's way out, but try It. worked for me!

Mar 30, 2008 | Duracell AAA NiMH Battery Charger with 4...

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