How long do you charge a Black and Decker 18-volt battery?

August 15, 2010
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I have four Black and Decker 18-Volt Firestorm batteries. I’ve been charging them on the simple wall charger for about three hours each. They charge but I just think they should last a little longer than they do in my drill, circular saw, flashlight, and weed eater. (all interchangable black and decker 18 volt products) Am I charging them too much or too little?

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2 Responses to “ How long do you charge a Black and Decker 18-volt battery? ”

  1. Think Tankā„¢ II on August 15, 2010 at 8:06 am

    If you are using a charger that is intended for the battery, you may leave it on cradle overnight to make sure you are charging it at full capacity.

    If you are using a substitute charger, have it charged longer but check if the battery will get hotter than normal. If it won’t get hot, have it charged overnight.

  2. Desert Dust on August 15, 2010 at 8:56 am

    I charge mine till the LED stops flashing. Mine are several years old now, and do not last more than an hour of hard work. They would run for half a day.

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