Got to the boat today after a long break and everything is alright, except for the amount of mold I've found. So first thing was to wipe the whole mold clean.
I've also checked the voltage with which the batteries are being loaded from shore power - 14.7V - hope it's compatible with gel batteries.
I've also managed to fix the NASA Clipper Duet screen - new LCD solved the problem. New covers are also there, to protect the LCDs.
Tomorrow is the big day, scrub the whole under waterline hull and apply antifouling.
