[Elecraft] KBT2 battery arcs and gets hot on installation

[jrb]

Hello All-

Just installing the KBT2 battery. The first time I tried the battery  
arced and became too
hot to touch for about half an hour.

Just tried again and there was no arc, but the battery started to get  
warm so I pulled it
out of the bracket. The battery is not connected in any way, and yes  
the foam is between it
and the bracket.

Any ideas?

Jeff

KG6ZVT