Hi all
I have a 4KWH li-ion battery in my camper with a SmartSolar MPPT 100/20 and a MultiPlus 12/1200/50. Sometimes I don't use the camper for a month or so, so I'm wondering what will be the best way to maintain the battery when not in use.
Should I simply leave the camper connected to mains electricity so that the Multiplus takes care of the battery, or should I rather connect a small solar panel to the SmartSolar for maintenance charging?
If solar, I was thinking to put a small solar panel on the roof of its parking spot, how big should this panel be, will a 30W panel giving around 1.6A be fine for this?