Lots of threads on dedicated AC circuits, but not much information regarding DC to AC battery driven systems. I never considered this as a power option because I assumed that the inverter would be noisy, but is this true? The setup is pretty simple where an AC/DC charger has the negative lead attached to the battery and the positive passes through an appropriate fuse on the way to the positive terminal. The on/off function can be a simple removal of the plug from the wall, or a smart wall plug. The charge state can be read from the charger, or you can add a wired, or Bluetooth battery monitor. The battery then feeds the inverter with a much larger fuse on the positive line to the input of the inverter. Your system is then plugged directly into the inverter, or at least your power conditioner is plugged into the inverter. Depending on battery capacity and system power usage, you can then run off the grid for many, or not so many hours. The problem is that it is difficult to find advice on such a power arrangement here on Audiogon. I’m just now putting together a system and I’m thinking that for better lithium battery life and shorter charge times, I want a larger capacity battery that I charge to 80%. I might also want an inverter that is oversize compared to the load that it experiences, in that most inverters turn on their fans when they reach 40% of their max power, or reach thermal trigger levels. The latter makes me think that mounting to a large aluminum surface might be thermally advantageous. Perhaps, someone that actually has some experience with this subject could offer some pointers.
