[Al Skierkiewicz]

The chargers do go into a trickle charge mode once they have determined the state of charge on the battery connected. After that, the battery is periodically checked for state of charge. I do not recommend that the charger be left powered and connected to a battery any longer than a day or two. In the event of a failure in the charger, the battery could be destroyed and the resultant damage could cause additional damage to the surrounding area. The charger also produces heat whether charging or idle so the life of the charger will be extended if left unplugged when not in use.