Charger red green blue lights flashing - Universal Battery Charger Charges Multiple Combination

Maybe contact them....

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Question edited for clarity and correct spelling of the maker.

Here is the manual section on the LED Lighting sequence. Both Red and Green flashing is not there. Your charger has a model number on the bottom of it and you didn't supply that, so this may be the wrong charger!
http://powertool.manualsonline.com/manuals/mfg/ridgid/140276002.html?p=5

The question was mentioned on Fixya before.

I have a ridgid rapid twin 18 V charger that flashes red and

Fixya https://www.fixya.com > Forum > Drills > Ridgid
Nov 21, 2019 - Red flashing means the charger or battery is to hot and must cool down before it will charge. The charger will not charge a battery if the lights are flashing.
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Blue, and light for the charger is green for charged

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.

Hi, Ephraim. The flashing red light indicates that the device is showing "low battery". It could be that the LG phone charger fits the charging port on your bluetooth headset but it is not compatible with your device. In order for you to know that it is charging, the device should show a steady red light(means charging).
Please take a look at the table reference below.
----------------------------------------------------------------------
•With the Charger Plugged In
______________________________________________________________________
•Headset Indicator Headset Status
Red-----------------------------------------------Charging (battery level less than 50% charge)
Yellow-------------------------------------------Charging (battery level more than 50% charge)
Green--------------------------------------------Charging complete
----------------------------------------------------------------------
======================================================================
======================================================================
======================================================================
----------------------------------------------------------------------
With No Charger Plugged In
__________________________
Headset Indicator Headset Status
______________________________________________________________________
Off ---------------------------------------------Power off
Three blue flashes------------------------Powering on/off
Steady blue --------------------------------Pairing/connect mode
Rapid blue/purple flashes -------------Connection successful
Quick blue flash --------------------------Incoming/outgoing call
Slow blue pulse --------------------------Connected (on a call)
Slow blue flash ---------------------------Standby (not on a call)
Slow red flash ----------------------------Idle (not connected to phone)
Slow purple pulse -----------------------Connected call muted
Steady red ---------------------------------Attempting to connect
Quick red flash ----------------------------Low battery

Note: After 20 minutes on a call or of inactivity, the light stops flashing to conserve power, but the headset remains on
----------------------------------------------------------------------

Hope that'll help you in some way.
**Please rate my post and/or leave a comment** ...Thanks...

Had the same problem. Light just flashed blue and red. I decided to put the headset on the charger while it was flashing and after about 30mins of being left on the charger it started working normally again. Hope this works for you.

Ridgid charger lights read as follows: Solid red; charger has power. Flashing red; charger is evaluating the battery, checking if it's cool enough to charge and if it is in chargeable condition. If the battery is hot, i.e. just came off the tool after extended use, it won't charge the battery until it cools down. Flashing red & green; the battery is defective and the charger will not charge it. Solid red & flashing green; battery is charging. Solid green; battery is full.

1. Charge it 4-7hrs
2. When ready, it must be light up either Green or Red when you PRESS IN on the Up/Dn Volume button
3. Press and hold the Answer button (on microphone boom) for 2-3secs, then Push IN and UP on the Up/Down Vol button'Light should flash Red/Green/Red/Green.....
4. Go to Phone, Enable Bluetoth and tell it to FIND new adapter/Devices
5. When it 'finds' M2500, punch in 4-zeroes (0000) and hit enter/Dial and it should connect
6. When connected, the 2500 will flash BLUE

Thats it!
If it will not charge up (light either RED or Green) the charger is bad, or the M2500 Battery is gone.
I opened mine up and will (!) replace it eventually, but it is consisted of 2 tiny batteries, about 1/4 as long and same diameter as a AAA connected together. They measure 1.3v each, but I think this is SUPPOSED to measure 2.4v. T Open, you have to use force and pry it apart starting at the charger socket end. Go slow and it wont break.

Have you activated phone yet? When phone is activated and in service it flashes green. It's hard to believe it would flash green without a SIM card, as there is no service...unless AT&T is providing emergency service only and you're getting a flashing green which means you're in range of their towers.

1. Charge it 4-7hrs 2. When ready, it must be light up either Green or Red when you PRESS IN on the Up/Dn Volume button 3. Press and hold the Answer button (on microphone boom) for 2-3secs, then Push IN and UP on the Up/Down Vol button'Light should flash Red/Green/Red/Green..... 4. Go to Phone, Enable Bluetoth and tell it to FIND new adapter/Devices 5. When it 'finds' M2500, punch in 4-zeroes (0000) and hit enter/Dial and it should connect 6. When connected, the 2500 will flash BLUE Thats it! If it will not charge up (light either RED or Green) the charger is bad, or the M2500 Battery is gone. I opened mine up and will (!) replace it eventually, but it is consisted of 2 tiny batteries, about 1/4 as long and same diameter as a AAA connected together. They measure 1.3v each, but I think this is SUPPOSED to measure 2.4v/4.8v total. To Open, you have to use force and pry it apart starting at the charger socket end. Go slow and it wont break.