Why Won't My 1000W Inverter Run my 800W Coffee Maker?

We are all assuming that the coffee maker trips the breaker on the inverter (or it just shuts off) or blows the fuse to the battery. Which is it ? Also, does it shutdown immediately when turming on the coffe maker ?

As stated above, the size and length of the battery cables make a big difference. 10 gauge wire is good for about 5' from the battery.

Also, many inverters are simply over-rated. The less expensive, modified sine wave inverters are notorious for this,