4000 inverter with 12V 200A battery

How do I choose the best inverter for my 200Ah battery?

Ensure they are both compatible (most inverters work with standard 12V batteries) and match each other’s specifications for optimal performance. By carefully considering these factors and selecting an appropriate-sized inverter, you can ensure efficient operation without putting unnecessary strain on your 200Ah lithium battery.

How many amps does a 12V 4000 watt inverter use?

Each battery will be contributing about 200 Amps to run a 12 V 4000 Watt inverter. Looking at an ampacity table, that leads us to 3/0 (aka 000) which has a cross-section of about 85 mm2. For the wire running from the battery to inverter, you will need to use 500 KCMIL wire unless it is a long wire run, in which case you will need even larger wire.

How many batteries do I need for a 4000 watt inverter?

It will draw a good amount of energy in the amps at 12 volts and 24 volts. Presumably, you will connect the inverter to the 48 volts. Thus you may require 4 x 12-volt batteries in the series of connections to power the 4000 watts of the inverter. How many batteries do I need for a 5000-watt inverter?

Is 4000 watts too big for a 12 volt inverter?

If it is not too late, you might consider buying a 24 V inverter and putting the batteries in series so you can use smaller diameter wire. In my opinion, 4000 Watts is really too large for a 12 V inverter.