Quote:
Originally Posted by Piotrsko
4kw @ 120v =33.3333 amps then add some for inverter losses so under 50 amps. 4kw @12 volts =333.3333 amps power in. Like > 2 gauge fairly short battery connections and some serious battery storage like a volt battery pack. Bet it cooks itself at those loads
Hmm, but no mention over on the diysolar site of this. Must be chineseium
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yikes that a good point on the 12v amps being no bueno. I've also heard the chinesium ones can be much lower on actual efficiency when tested as well. Some times like around 80% efficiency but it all depends on load and duty cycle. Sounds like a 48v system makes a lot of sense if you get into larger stuff.