White Powdery Discharge

[Dukester]

What exactly is this substance and why do my NiMH 9000mAH produce this white substance?

 

[eluminator]

Were those cells sent from Columbia by mule?

 

[Streak]

I also had this.
One visit the local pharmacy is all oit took to sort it out.

 

[Pydpiper]

Too funny.. This thread was an open invitation for attacks.. /ubbthreads/images/graemlins/ohgeez.gif

 

[Dukester]

knock, knock, knock. Who's there? U.S. Marshall's we have a warrant. Yikes... /ubbthreads/images/graemlins/sick2.gif /ubbthreads/images/graemlins/sick2.gif /ubbthreads/images/graemlins/sick2.gif

Seriously, is the powder detrimental to the performance of the battey. The battery in question are 9000mAH Titanium D Cells and this by far is not the first time it has done it. The powder does not discharge on a consitant basis but nonetheless it does discharge. Should I worry about it?

 

[Muppet]

if you're seeing it on charging, I believe it's caused by the battery offgassing hydrogen. It does indicate a small loss of cell performance, but not much. The white stuff is ??electrolyte?? being carried out by the gas.

I think.

 

[eluminator]

I think the cell is bad. I've never seen this. NiMH ain't supposed to do this. I'd be concerned that the powder could corrode the flashlight, or whatever device it's in.