batterys are hissing on the charger

[skullfreak]

i just put my batterys on the charger and there making a pretty loud hissing sound?
is the charger going bad?

 

[DaveP]

Lithium Ion batteries have a vent that allows pressure to escape when they get too warm. It could be that your charger's regulation circuit is faulty or the battery may have issues. Do you have another charger you could try? Does this happen with all your batteries?

Here's a link to Li-Ion batteries. About halfway down the page it talks about the vent.
Howstuffworks "How Lithium-ion Batteries Work"

 

[breaktru]

After following DaveP's lead, also check the battery post that screws into the charger. Wipe it out and make sure it's clear of excess juice.

 

[Big Hitter]

YIKES.... run for cover!

 

[BuzzKill]

IF the battery is hissing THROW IT OUT IT IS BAD !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

DO NOT USE IT , toss that sucka right now

unless you do not care about yourself then do whatever .

it is outgassing , this is a serious sign of failure internal to the battery it has shorted internally and is toast.