Yea definitely a fully charged battery should make them come back to life properly. In many cars when a battery is almost dead youll hear relays going nuts and see weird things on the displays as everything struggles to suck the last drop of power from the battery.
<img src='http://members.cox.net/inelson5/330i.jpg' border='0' alt='user posted image' />
<img src='http://members.cox.net/inelson5/wooani.gif' border='0' alt='user posted image' /> The whistles go WOOOO!!! *BUBB RUBB FAN CLUB*