AA battery recharger is flashing red - Electronics - Others

My Evatac flashlight rechargeable batteries not working .when connecting batteries to charger light flashes green red green red ect. What is the problem

http://www.farnell.com/datasheets/9610.pdf explains the indicator lights

It could be possible that 1 of your 2300 mAh AA battery is defective.
Try to charge only 2 2300 mAh batteries at a time to see if it can charge.

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.

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.

Please refer to your charger user manual: but in general, this indicates that the charger has determined that one or more of your rechargeable is faulty (despite the fact that it may still hold a partial charge).
Smart charger can measure the expected voltage and current flow and will prevent any 'faulty' cells to be charged (those 'faulty' rechargeable batteries may actually still be useful and charged on other less intelligent charger). Try charging them individually (if your charger can handle individual battery) or in different pair combination to locate flaw cell.
Hope it helps.

the red lights will be solid instead of flashing

There is nothing wrong with your flash unit. The regular AA batters are 1.5 v volts each- if 4 batteries are used that is a total of 6 volts for proper operation. The rechargeable batteries are 1.2 volts each and 4 will get you 4.8 volts- thats 1.2 volts short and that is probably the root of our problem .

Try recharging you rechargeable batteries and put the im one more time- if the same problem happens you will have to stick with standard AA batteries. There external 6 volt packs that will work with your flash unit0 the are a bit of an expense at first but you will save on replacement batteries in the long run,.

Ed

bad battery

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!