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Tool Talk Discussion Forum

DeWalt Batteries (14.4)

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John in Ne.

03-18-2006 10:32:40




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Of course I lost the manual that came with my drill 10 years ago.(Thats a givin) But,anyway I had to buy a new battery for it and I can't remember if I need to charge it before I use it or run it dead and then charge it.Could someone look in their manual and let me know,or does someone already know the answer for me?




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frankiee

03-20-2006 08:05:18




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
I found my 18 volt charger downstairs on my steel desk and the charger was in "melt down" phase. Like I mean real HOT. Luck it was on steel. I will not leave any charger unattended that long again. A drill sees enough action that you dont have to discharge it on purpose. Just don't store it in a active charger. I allways get 2 chargers and another battery. Going to use them anyhows.
If there is any memory problem then it will correct it self with the next cycle anyhow.
Just use and charge as required.
I now time and charge the batts on a workbench that has no chance of fire.
I did not realize that those chargers could get that how without burning the wires and breaking the contact. Dont trust chargers. Maybe charge under a smoke alarm in the shop
I know.
I'm paranoid now aint I

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ErnieDD

03-19-2006 09:42:30




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
NiCd batteries should be recycled, cadmium is the most toxic heavy metal.

It is poor economy to fully discharge multi cell NiCd batteries, it causes voltage reversals in the multi cell pack and the cell is toast.

Charging memory was linked to a 60's telecom satellite that recharged in orbit to very precise stages. Modern cells do not exhibit this effect.

More important not to leave for long times in charger and not to store too hot or cold.

My thoughts. you can measure the battery voltage and determine how many cells have shorted. There are no partway good cells.

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Skip

03-19-2006 08:27:32




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
You fellas who are throwing away your rechargeable battery packs might want to take a look at this website.

www.primecell.com

It worked for me and I know a friend who had his batteries rebuilt here and was quite satisfied with them.



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souNdguy

03-18-2006 22:51:56




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
Older NICAD batteries really should be discharged fully before recharge.. Newer NIMH and LI batteries don't suffer nearly as bad when incrementally charging.

Soundguy



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tyrant lizard

03-18-2006 20:54:47




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
i just recharge as needed. when it will no longer hold a charge i recycle it in the nearest dumpster and get another one. those battery powered drills do ok the first few months but then it'a curtains. got a few old electric drills here that just won't quit. but the battery drill is better cause you don't have to drag the cord around. i used my 14.4 dewalt today ,paid about $200 a few years ago. i can tell the batteries are going bad.

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evielboweviel

03-18-2006 14:53:00




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
when discharging any battery with multiple cells never discharge below one cell completely discharged as you will permantly damage the battery
Ron



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kidbob

03-18-2006 13:38:26




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
Charge the battery fully before using it. THEN discharge it fully before recharging, repeat this at least two times to prevent a short diacharge memory. Now you can recharge at any stage of discharge.



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Scrooge

03-18-2006 11:23:47




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 Re: DeWalt Batteries (14.4) in reply to John in Ne., 03-18-2006 10:32:40  
Hi, John -
I usually have good luck finding manuals online. I think the link below will let you register and download the info you need. Hope this helps.



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