Ansmann 2039 3002 plug in lead acid battery charger ansmann 2039 3002 p the ansmann bca 120 350 is a low cost plug in charger for most types of small 12v lead acid batteries including gel filled maintenance free and vrla recommended for 0 7ah 9ah batteries but it can charge larger batteries over a longer period of time p p this fully automatic battery charger has short circuit overload and reverse connection protection and switches to a trickle charge once the battery is fully cha