CAN 48V AND 60V INVERTERS BE USED INTERCHANGEABLY
Safely paralleling 48V batteries requires identical voltage, chemistry, and state of charge (SoC). Mismatched parameters trigger cross-currents, degrading cells. [pdf]
Simply put, if you have a 12V system, you need a 12V inverter; a 48V system requires a 48V inverter. Standard Pure Sine Wave inverters simply change DC power to AC power. Inverter Chargers handle this function plus allow you to charge your batteries off shore power or a generator. Renogy's 3500W Solar Inverter Charger is designed for a 48V system.
In this post I have explained a simple 48V inverter circuit which may be rated at as high as 2 KVA. The entire design is configured around a single IC 4047 and a few power transistors. I am a big fan of u....i am a wisp. i need an inverter design with 48volt DC input and 230volt output supply and output power in the range up to 500w.
At 48V it drops to a more reasonable 66A. This is actually better than you might think because power loss is proportional to current squared, so if you use your existing wiring and connectors the loss in them will be 4 times higher. A 24V inverter might be a bit cheaper, but you should consider the cost of replacing your wiring and fuses etc.
Here in the US, things run at 60Hz, in Europe and most other places around the world, things run at 50Hz. You'll most likely require a 60Hz inverter if you are running a device intended to run on US power. We like to go camping and travel quite frequently.
PDF version includes complete article with source references.
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