How much power can I draw from the fuse box

Asked by Guru94PN2J Nov 26, 2022 at 11:27 PM about the 1999 Mitsubishi Eclipse GSX Turbo AWD

Question type: Car Customization

I was curious how much power I can tap from the fuse box. I want to add both a
flip down monitor and a power inverter to run a Xbox One S. can i tap enough
power from the fuse box for both of those or do i need to wire it straight from
the battery, or is there a better way to power it? Thanks.

2 Answers

307,265

A vehicle that old and this make you just asking for a meltdown. You need to run dedicated circuits for all that with overload protection, good power relays, and noise suppression units. I would highly recommend you install another battery for this system with a continuous solenoid linked into the ignition and charging system.

202,485

Electrical systems for cars and for buildings are highly detailed things. Supply through fuse boxes is designed with little flexibility; if you have all the options in your car, there's really n room left in a box. With all the load of that inverter, you need to run an additional fuse box, dedicate circuits and fuse sizes, and hope the alternator can keep up with it when everything is running..... For better advice, see a car electronics or stereo shop. They'll assess loads and advise on what's needed to handle it.

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