Do I need a pre-charge resistor for a 300 watt inverter?

[Bud Martin]

BTW, do pre-charge with the inverter power switch in the OFF position.

 

[AlaskanNoob]

BTW, do pre-charge with the inverter power switch in the OFF position.

Will do, thanks!

 

[AlaskanNoob]

Got er done. Used a 100W 120V light bulb on the negative. It turned on for a half second and went right out. Hooked it up, no sparks, everything worked fine. Thanks for the advice!

 

[JasonHaws]

Hello I am using a 300 watt inverter, I am sure it would be considered small to most of the people here that are running >5000 watt systems. However even with such a low rating, I am getting sparks when I connect it to the battery.

I did some searching and it looks like Will says you should have one for "large" inverters.

How large is large and what specs do I need on the resistor?