Question about Black & Decker String Trimmer Cordless 12" 18V

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Cordless weedeater loses charge after only using 10-15 minutes, can we replace a battery pack or do we need a whole new one?

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  • MGHuck Aug 02, 2008

    My unit is now 2 years old, and the battery seems to go down MUCH FASTER than it did when new.

  • Anonymous Aug 05, 2008

    I am having the same problem, the unit was fine after the first charge. Then after each use the time of use has become shorter and shorter. I thought they fixed the memory problem with these batteries.

  • dan23 Aug 05, 2008

    after the first charge, the length of the charge has been getting shorter and shorter. I thought they fixed the memory problem with these batteries?

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Battery companies don't want anyone to know this but if you run the terminals over a magnet, the memory will harmlessly be erased. However, a battery may overcharge so keep an eye on it will recharging the next time.

Posted on Sep 01, 2008

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The so called memory effect only effects NiCads,
The older B&D trimmers use a Gel Cell battery (they have a recycle symbol with Pb on them, Pb is the chemical sign for lead)
If you run a Gel Cell down all the way, you will quickly DESTROY it.
Gel Cells should only be run down until you notice it slowing down, and then recharged ASAP. These units should be kept on charge whenever they aren't being used, or recharged at least once a month, whether they are used or not. If they aren't on charge all the time, they should be charged before using.

If this doesn't fix it, you've already ruined the battery, go get a new one.

Posted on Sep 07, 2008

Most batteries have a memory. So, if you don't let it completly die bofore you recharge it, the life of the battery will shorten to the charge you give it

Posted on Aug 05, 2008

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