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Considering a DeWalt DCD920KX - Questions


Guest Jopopsy

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I don't know how much you could sell your Makita for? If it's worth less than $40, take it into Home Depot and let them take it off your hands. They will give you 15% off that kit, $41.85 is what you could save? So that $279 kit would now cost you $237.15 plus tax.

http://dewaltownersgroup.com/index.php/topic,242.msg632/topicseen.html#msg632

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Guest Jopopsy

I don't know how much you could sell your Makita for? If it's worth less than $40, take it into Home Depot and let them take it off your hands. They will give you 15% off that kit, $41.85 is what you could save? So that $279 kit would now cost you $237.15 plus tax.

http://dewaltownersgroup.com/index.php/topic,242.msg632/topicseen.html#msg632

Wait, the DCD760KL is a $219 drill.  ???

http://www.lowes.com/lowes/lkn?action=productList&N=4294961544&Ne=4294967294&Ntk=i_products&Ntt=DCD960KL

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I tried this in several tools at Kent (canadian), I think it was DC930. I will check again and report :)

BTW, speaking of NiCd trickle-charged indefinitely: B&D has commercial interest in batteries being cycled more often, wikipedia doesn't.

NiCd has to be trickle-charged at a rate slightly below self-discharge rate, and that's exactly what Dewalt chargers do, meaning battery is topped up slower than it discharges. If you do it faster, you start generating heat (you pump in more energy than is being dissipated) and degrading active elements. Once the voltage drops to a certain threshold, charger increases charging current and "tops up" the cells so the voltage is above the trickle charging threshold again. This is effectively "cycling". It doesn't degrade your battery *instantly*, but in a long term you have significant capacity loss. It is a known _fact_ (for decades) that NiCd is best stored discharged. I don't care what the manual says in this case, monkeys who compose manuals are not engineers.

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Guest Jopopsy

I sent a email to DeWALT customer service.  I asked them how often to put them on the charger for the 8+ hour charge, balance, trickle cycle if I don't use the tool every day (or every week).  They wrote back and said put the XRP nicads on the charger every other week when going through periods of low / no use. 

Obviously, I'd pop them on the charger before I started a job.

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