First off, let me clearly state that I'm a total moron when it comes to matters of electricity and electronics. Perhaps I should also mention that all the installations I'm about to refer to were done by Victron accredited installers. Historically, about 4 years ago, I had a 12/1600/70 inverter installed in my house to cover daily electricity cuts of up to 5 hours, and this worked perfectly for the appliances I wanted to keep running during those power cuts. Of late, however we are now experiencing power outages for 18 hours daily, so I decided I needed a solar solution as back-up to keep the 2 X 12v 200Ah batteries charged during daylight hours. This was done 2 days ago, but according to the battery monitor readings, the reserves keep dropping, which, to my addled brain indicates that the solar panels (3 X 265W) are not charging the batteries? My question is this: Is there a possibility that the MPPT 100/50 charge controller isn't doing its job, and if it is, why doesn't the battery monitor indicate an increase in storage levels?