New Cell Overcharging: What Mistake Did I Make?

[karthik3k]

I bought a new cell.
I never let the power go below 80%.
Now the cell(power) has become weak.
It can't even withstand for 5mins with full power.
What was the mistake i made ?
Did i overcharge my cell ?
I don't understand the chemistry behind that!
Can anybody explain ?

 

[Guybrush Threepwood]

you proably have a NiMH battery. it's called memory effect
http://www.digibattery.co.uk/ni-mh_store1.html [Broken]
http://www.dvanhorn.org/NIMH/Index.php

don't do that again. always let the battery empty itself before recharging

 

[karthik3k]

Hey thanx,
you have given me a lot of information

regards
Karthik3k