Dewalt battery wont charge

[ukbertie]

i have a 2,a 18v dewalt battery that no longer holds a charge , is there any way theese can be fixed or do i have to buy a new one ?

 

[big-all]

nicad or li-ion ??

how old is the battery how often on average has it been used daily weekly monthly seldom

 

[ukbertie]

its nicad and its used weekly and about 3yrs old ,its from the xr range
and my mistake its a 2.6a

 

[big-all]

2.6 does it have a yellow top[nmh]
do you have another charger ??

 

[ukbertie]

Yes it has a yellow top and no i dont have another charger , this came with 2 other batteries which still hold there charge .
so the charger is still working ok .it is a 30 min charger when i try and charge this particular batt it says after about 5 minds that its charged but when you attatch it to drill it starts then goes flat within seconds

 

[big-all]

check its a nmh[nickle metal hydride] if so try several re insertions after a few mins

funny enough one off mines has just packed up off the 10 dewalt batteries up to 15 years old its the first one to fail and one off the newest at around 5 years old lol
http://www.google.co.uk/search?q=de...w&biw=1043&bih=481&sei=PzzeT8nyOsiA8wPMzMGRCw

 

[foxhole]

I read somewhere that if you touch the terminals to double the voltage for a split second it will allow them to be charged again, not tried it though.

 

[big-all]

I read somewhere that if you touch the terminals to double the voltage for a split second it will allow them to be charged again, not tried it though.

zapping batteries in my opinion is only a short term few days or weeks a dying battery is near its end and a shot of viagra can only be temporary

 

[ladylola]

I read somewhere that if you touch the terminals to double the voltage for a split second it will allow them to be charged again, not tried it though.

maybe you read it on this very forum
http://www.diynot.com/forums/viewtopic.php?p=826199#826199