[Shop-talk] [Roadsters] Slightly OT--car won't start

[Steven Trovato]

You can also do a poor mans load test using the headlights.  While 
measuring battery voltage, just leave the headlights on for maybe a 
minute.  Then turn them off and wait 30 seconds or so.  If you're not 
still seeing decent battery voltage, then the either the battery 
wasn't charged, or it's shot.

-Steve Trovato
strovato at optonline.net