how much does the weed wacker pull? even a 29.95 special usually draws 3.5+ amps. so that would mean at least a 600W inverter, preferably larger. my 1000W inverter pulls 100A DC at full load, that will kill a battery in no time.

Hi Gary,

Here is a blurb on what runs on modified sine wave inverters:
http://www.xantrex.com/support/readfaq.asp?did=268&p=1348

Looks like the odds are it would work OK.

I checked our electric weed whacker on the killawatt, and it pulls 500 watts.
500 watts from a 12 volt battery would be 42 amps to the inverter. Costco sells a 115 AH 12 volt deep cylce for $72 -- assuming an efficient inverter, that should give you about 2 hours of weed slaughter if you take the battery down to 25% charge.

Gary

thanks gary

I saw your update on your prius, glad it is working out. I almost had my wife talked into one but then she went with the corrolla, which it turns out to be a nice car, she is averagig about 33mpg even with her heavy foot

gary