I’m currently working on a Twizy vehicle the urban-80 model of 2013-2012. The battery seems to discharge every now and then. This version has the old charger which only charges the 12V battery when connected to the wall or when switch is activated ( and not periodically even with ignition off as the new versions ).
I’ve read a lot of posts of people with the old charger having issues with their 12V battery. I’ve already changed the battery, without much improvement. The possibly aggravating cause, is that I have an external 150 to 300W load always connected in the 12V line. Does anyone know if the DC/DC converter is able to supply that kind of power and still be able to charge the auxiliar battery? My intuition tells me, I’m very steady but slowly dischargin the 12V battery. Has anyone test this kind of load with a twizy?.
I know it is a very technical issue, but if anyone can shed some light or recommendation it will be highly appreciated.