Driving lights and stock alternator / stock alternator excess output

[yuji]

How much extra output can the stock alternator handle on an LX470?

I'm about to buy some driving lights to point a little to the left/right, but worry about the draw on the battery. I'd probably running <200w. An aux battery sounds great but it's tough to fit.

This seems like a common question, but I couldn't find anything, so excuse me if I couldn't find it.

 

[2000UZJ]

I run a little over 550W in aux. lighting and have no issues at all.

 

[fireball]

Does anyone know the specs on the OEM alternator?

 

[hoser]

80/100/130 amp depending on year.

 

[fireball]

I've got a 99. I'm guessing that means 80amp?

I've been researching dual battery setups and wiring upgrades and haven't read a ton about alternator upgrades, so I'm hoping my stock alternator will be able to handle everything.