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Charging Batteries I have a strange problem, sometimes when i put my 4000mAh Batteries on the charger, it will show a green light on the indicator led raher than showing a normal charging ORANGE light, but that is not covered at all on the instructions manual; what is happening?,is it charging the battery?, some other times, or when i swap the places the batteries are in the charger, they show the normal orange light, so what is up with the charger, it is brand new and only used tocharge the packed batteries, please help me

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Re: Charging Batteries

This could happen if the batteries have been recently used, and are "hot". Chargers use one, or a combination of, "end of charge" detectors. Either it's timed, detects a slight drop in voltage, or senses temperature. Try waiting 30 minutes to an hour after use before charging. Also, be sure the ambient temperature is within parameters. Too hot or cold (we live up north...gets cold in the garage) will affect the charger.

Posted on Jun 20, 2009

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What does the flashing red light mean?!?

The flashing red probably means that the charger is working correctly and is indeed charging the batteries. The light should turn green when charging is complete after anything from 1 to 16 hours depending on how this charger works.

Do the following test: Fit the charger with your batteries and connect it to the mains. After 1 hour check if there is a detectable temperature rise in the batteries. You can do this without interrupting the charge cycle by touching the cells with the back of your fingers. If the temperature is still low, let it continue for another 15 hours or so, checking every now & then for any temperature increase. Should the temperature rise more than a few degrees, then stop the charging by removing the charger from the mains. Should the red lamp remain flashing after 16 hours, then I suspect you to have a defective charger.

Dec 27, 2010 | Duracell AAA NiMH Battery Charger with 4...

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What does it mean when a household battery charger flashes red then green? The charger is a SYNERGY DIGITAL rapid quick charger. I'm trying to charge new AA Energizer Lithium batteries.

When the charger light is changing from red to green that is a indication that it is charging the battery. When the charge is complete the light will stay green until the battery is removed or the charger is unplugged.

Jun 06, 2010 | Energizer Rechargable Battery with Charger

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The LED's on my Energizer charger flash red and green constantly.

If your charging 2 batteries only they must be palced in the following poistions on the charger
1. both side by side in the 2 left slots


2. one each in the two right slots.

Otherwise the batteries will not charge.

The users manual can be downloaded here:

Thanks for using FixYa.


If the batteries are charging the battery indicators

Mar 24, 2010 | Energizer Rechargable Battery with Charger

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I have an Energizer E2 Slider battery charger, Is the green light supposed to stay on when charging. Does it shut off when charge complete.

all chargers show a light of some colour when charging , green or red , depending on make of charger , when the battery is fully charged the unit monitor this and automatically switch of to stop from over charging , a safety feature that has to built in for safety reasons ,

Jul 19, 2009 | Energizer NiMH Compact AA/AAA Battery...

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How to use

with Nimh batteries you can charge them anytime, you dont have to run them down first like nicads. just put the batteries in the charger with the flat end (-) against the spring and plug it in. some models have a red light to show its chargeing and a green one to show its fully charged while others just have a light to show it is chargeing.

Dec 19, 2008 | Duracell AAA NiMH Battery Charger with 4...

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What color should LED be when charged on duracell NIMH charger

When the batteries are charged fully the light should be green.

Nov 27, 2008 | Duracell NiMH AA/AAA Battery Charger with...

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LED Light on or off indicator

on my charger the red lights are only to tell there is power connecting especially when you have two battery's behind each other on the bottom of my charger there is a guide as to how long you should charge each battery as to size which are aaa 7hours max
aa 24hours
c 24hours
d 24hours
9v 24hours
hope this helps glenn............

Nov 20, 2008 | Duracell AAA NiMH Battery Charger with 4...

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Rechargable Batteries Battery Charger

When batteries are placed into the charge mode, the red light will come on.
When fully charged, on those units with a green light, the green light will be an indication that your batteries are charged and if your unit has no green light, the fully charged indication will be when the red light turns iff.

Apr 24, 2008 | Universal Battery Charger Charges Multiple...

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I would go to Radio Shack and have them explain the proper charging procedure as well as inquire about the red and green lights as not all chargers go green when fully charged-Normally red indicates a charging action and if a charger has no fully charged light, then a required charge time period is noted in the instructions. Batteries can be ruined by over charging!

Jan 03, 2008 | Energizer Rechargable Battery with Charger

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