Preparations 3 -New OPzV battery cells

South Pacific Familyadventure 2008
Claes Brodin
Thu 30 Jan 2025 21:10
Dora Mac´s main electrical system is 24V based on 12 x 2v OPzV battery cells. They normally have a lifespan of 15-20 years and the first setup was replaced after 17 years of service in Sardinia less than 2 years ago. The new U-Power OPzV cells delivered from Masterbattery in Madrid to Sardinia have been a disaster. Already from the beginning they overheated and the support from Masterbattery was nonexistant.
The last 6 months we have had continuous problems with "low battery" alarms and when measuring all battery cells individually we found them severly damaged.Already before replacement we have opened a ECC case (European Customer Center) run by a Swedish court against Masterbattery (who denies warranty) Subsequently they all needed to be replaced and new OPzV cells were ordered from Germany arriving Las Palmas after two weeks. We also decided to replace our old Victron Multi inverter/charger for a new one from Holland.
All new batterycells were installed,tested and working flawless.

PNG image

PNG image

JPEG image

PNG image