Hi Roy,
Do you really mean 3000 watts (or is it 300 watt)?
Do you really mean Gel cells, or do you mean AGM.
Gel are unsuitable for a 3000 watt inverter, running flat out, and could be permanently damaged by a 300 amp load.
AGM would tolerate the load (but probably not like it).
The entertainment center would be happier with a pure sine wave inverter, but since you have it, you could try it.
Is the battery bank wired in a balanced manner?
roy67ss wrote:
This will be a DIY install. Looks like I will go 12v.
I should probably elaborate a little. I have a cheapo 3000watt inverter ( Can.Tire ) PD9260 convertor, 2 - 12v 110ah gel cell batteries and intend to run only the entertainment center with the inverter. The 110v units are the TV and the sat receiver but would also be recharging the 2 laptops from there. I am good with the rest of the house running on 12v and propane.