(ET) Lithiums in an E15

[Chris Zach <cz alembic crystel com>]

So my 94 Prizm's electric batteries stink. And I have thought of 
replacing them with a 10k lithoium pack.
Then I thought "Why not try lithium batteries in the E15?" So much more 
exotic than mere NiCDs. :-)
So has anyone tried it? I'm thinking 10 TS 60-70ah batteries should 
match the Trac's charger (hee hee) and a small BMS should work on top.
Insane?

Chris