My lead batteries need to be changed, I switched to lithium. I took everything in Victron (cheaper than Mastervolt) and available in stores in France, although the price is still very high. So 6 x 12.8 v 200 Ah, exactly the same capacity I had in lead. (half in size) + Skylla 100A charger + 24V 3000 VA inverter + Ve-bms + Battery protect (65A for the 24 v alternator and 200A for the load) + BMV 712 + alarm.Everything is in bluetooth and is controlled with the Victron-connect application. In use, it is day and night with the previous equipment. Why Victron? Because the size of their batteries fit the battery compartment perfectly and I wanted everything in the same brand. It works great, according to specs, fast charging, higher load. No regrets (yet).