What the max size inverter

Vintage465 wrote:
So I have 2 six volt interstate golf cart batteries, 300w solar and a Samlex Controller. What is the max size sine wave inverter that could be installed? We don't watch TV, use microwave or really anything that uses 110v. I just would like to have some availability for 110v if absolutely necessary. To describe absolutely necessary:(if my wife needs to use the 110v grinder to make a special grind of coffee for her latte). Meaning, it would be a pretty short blast of usage.

thanks,

It doesn't matter what giant sized inverter you install per battery AH capacity. What matters is what the draw is of whatever you plug into the inverter.

First you have to look at the info on that grinder and tell us what input watts it wants, and whether a grinder is an inductive (like a motor with a surge start) or just a resistive load.

Given that info, your input supply in 120v needs will be known. Then your question can be answered, taken as, "What size inverter do I need for this job?"