5 x Victron 25.6V 200Ah LiFePO4 Victron Quattro 5000 / 24 / 120 Victron lynx power in Victron smart BMS Victron lynx distributor

Before and After: Smart technology demands a reliable technical backbone.

The primary objective of this system design is to provide a stable and long-lasting power supply, as well as to enable running the air conditioning on battery power.

1570 Ah (5x314 Ah)  Victron Multiplus II 3000/12/120 Charger + Inverter 2 x Victron Orion 30A DC-DC Charger Ective Multiload PRO 150A Auxiliary Charger

The boat in question is a 12-meter motorboat, an Azimut 39. Originally, the boat had three battery groups: a generator, a starter battery, and service batteries. The generator and starter batteries were individual batteries, while the service battery group consisted of two 190Ah lead-acid batteries. 

Many yacht owners have thought about how nice it would be to have air conditioning at anchor, quietly, without running the generator. In this testing phase, we only operated the air conditioning in the two cabins from the battery, not the salon air conditioning. 

The yacht in question is a 46-foot motorboat by Cruiser Yachts. The owner has been dissatisfied with the boat's power supply for years. When shore power was unavailable, the power would run out after 3-4 days despite solar charging and 1-1.5 hours of daily generator charging, yacht requires 10-12 hours of battery charging. Before delving into the details, it's important to clarify a fact and dispel a myth: many people confuse LiFePO4 batteries with Li-ion batteries, which have a rather poor reputation in the automotive industry.