Question about Energizer Rechargable Battery with Charger

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14.4 B&D firestorm battery will not charge. I got it about a year or so ago online and just now tried to use it. charge is gone and it won't charge. do they wear out if not used?

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Yes, Batteries can go bad if not keep charged. The problem may also be the charger itself. If you have a DC Voltmeter, you can check the charger's output...... if no output voltage is apparent (or too low an output voltage, relative to the Battery's voltage, it may be time to replace the charging unit.

Posted on Mar 23, 2009

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My Nextbook next8p12 Has 3 wires running to the battery red/black/white. All the replacement batteries I see online only have the red and black. Will they work?


They will, but i don't know if i would trust them. The white wire is the thermistor, its what the charger inside uses to monitor the battery temperature. So in case something goes wrong with the charging it can sense the overheating and stop trying to charge the battery. Will the battery work, of course, unless the Nextbook requires the temp sensor input to allow the battery to be used, some devices won't recognize a battery without a temp sensor input and will say there is a battery fault because its missing, and some will work with it but may or may not even charge it because it doesn't see the temp input when it tries to charge. Best suggestion i could make is try it, but i also would suggest you get a proper battery for it, lithium batteries are scary enough when they fail, not having that safety could be even worst.

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The blinking indicator is telling you that the batteries have been inserted incorrectly. Otherwise, the charger probably no longer works

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I presume you have lights & sound on the controller when you turn it on - fourteen quick beeps and then a different toned fifteenth beep. The screen lights (blue). Insert the battery (lettering facing up toward the helo fuselage unitl it's seated all the way - an LED inside the fuselage, visible from behind, quick flashes and then begins a slower blinking.

Once the helo battery is inserted, turn on the controller, which starts the aforementioned beeping. On the last controller beep the helo's LED will stay lighted, indicating the helo & controller are synched.

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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.

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