Rob,

Here is a thread that covered it http://www.rcuniverse.com/forum/m_6636767/tm.htm

Here is part of an email I got from FlightPower when I destroyed my battery
"If the pack is damaged like you said it is best to dispose of it. This can be done by placing it in a bucket of salt water for about a week to let it discharge itself. Once this is done it can be thrown away in the garbage."

Nick