Tip & How-To about Drills

How to jumpstart ni-cad batteries

If you use cordless powertools(especially De-walt)you may find that the nicad batteries die if not charged correctly.
You can "jumpstart" these pretty similar to the way you might jumpstart a car. What seems to happen is that the cells became furred with ions and one way to get rid of these is to spark them out.
There is a link to a website that i will post once i find the paperwork again.

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hi, i have a 18v rechargeable hand held vac (pirana brand). It wont hold charge or wont even charge. What can i do to revive and/or where can i get a replacement battery? Thanks


Before I gave up completly on this battery I would remove it from tool and put battery in freezer overnight. Remove from freezer and let set at room temperature for several hours. Try to charge and see what happens. I don't pretend to know why this works but I have done this with every thing from ceel phone batteries to cordless drills and several other tools. If you need a new battery you should be able to get one at any hardware store that carries De Walt tools. I know arond here True Value is one that carries a large selection of De Walt tools and supplies. Hope this helps. Thanks

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I think your tryiong to charge NIMH batteries oon a charger designed for Lithium Ion batteries. With all the new style batteries such as NICAD, NIMH and LI-ION, charging becomes difficult. Most chargers pre NIMH and LI-ion, were designed for NICAD's. The best advise, match your batteries with the correct charger

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