[cornbeef]

hey z
i don't know of anything definitive, but if the battery is original you might want to check it with a voltmeter. i know mine was replaced when i bought the car. i've seen batteries seem fine, like turning a car over, but still not have enough to start it. it might be something similar, with the electronics getting confused by a low supply. other than that i've no idea

 

[tomrev]

I agree, sounds like a failing battery; still has some voltage, and will take a charge, but will never build up to fully charged state. A voltage tester will tell what's going on. My Elise had a fairly new battery in it when I bought it, but acted similar to yours. Tested out at 5.5 V. I put the charger on, and it would charge up close to 12.7, but when unhooked, within and hour was down to 30%, so I yanked it, and end of problem.

 

[Z-dculus]

i had both access panels off, not sure if that had something to do with the problem. I.e., needing the alarm/electricals to be reset somehow, etc.

 

[SirLotus]

Check the battery as described here http://www.lotustalk.com/forums/f129/battery-choices-information-64071/ Also check fuses R2 & F11
Michael