Additional lights.

Looking to add a light bar at front roof with 4 lights and a rear work light at the back of the vehicle .I was intending just to break into the wiring at the fuse box and add a grid switch to the dash with a couple of illuminated switches however Im not sure if the battery will manage all the additional lighting or will I need to add a second battery? Thanks.

Remember the battery doesn't really power anything when the engine's running- the alternator will keep it charged as long as the output current is high enough. If not, you'll drain the battery over time no matter how many batteries you have.

I think trying to wire something like a set of headlights by piggybacking off the existing wiring is asking for trouble though. The 'proper' way to do it is to run a new set of wiring directly from the battery to a new fusebox. Switch the new lights from a relay triggered by the high beam wire. This makes the setup road legal as when you switch to dipped beam, all the extra lights switch off automatically. You can put an extra switch in series with the trigger wire if you want the option to turn the extra lights off entirely.

Mine are all wired off a separate circuit (all fused) connected directly to the battery.

I have 4x55w front spots and 2x55w rear spots. No issues running off my main (and only) battery

Thanks guys very helpful