Hello my 10 watt interior lighting completely unloaded my only 3 year old Varta B32 Starterakku. My attempts to charge it again with various normal electronic chargers and the alternator of my Micra K11 I get it even after weeks no more over 12 volts. (How?) is there anything else to save (I have a battery master) or do I need a new starterakku ? My email requests at Varta or their battery distribution have remained unanswered, with the hotline- Teleon number never goes to anyone … Greetings to all readers, Thanks to all answerers,