Good look doing DIY work on the 48V network of a modern car, ICE or EV or 12, 24 or 48 V doesn't matter.
And the past 12 V systems are dead easy to work on. On older cars that is, as soon as you have electronics and bus systems DIY basically requires deep car electronics knowledge and skills.
Do you have examples of what kind of DIY work is hard?
I haven’t done a ton of work on newer cars, but at least adding wiring for a hitch on my Kona EV was just as easy as any wiring I’ve done on my old truck.
Is a job like adding amps and better speakers trickier?
Depends on where you connect stuff. Directly to some wiring loom that is already there? Bad idea, not all connected equipment will take the aditional loads well. Going directly to the car battery with dedicated wiring? Doable, but since start-stop is a thing, battery management and other stuff migjt not like that very well neither. Second batery? A bitch since start-stopp.
Hence, one needs some good knowledge around that, what to connect where.
In the old days, well, just go directly to the main battery with your aftermarket wiring and Bob's your uncle.
And none of that, battery management, which equipment can be connected where, has anything to do with the voltage but rather with all the other stuff modern cars have (bus management, battery management, ECus,...) all of which might or might not accept voltage and amp fluctuations very well.
I have a defender and added a bunch of stuff to it: cruise control, motor pre-heater, rear camera, working lights in the rear. I'll also add a diesel heater and more electrics at some point. On 12V it's easy, can't imagine doing work like that with 48V. Not sure how this works, and if you maybe just can use 12V anyway. But wanted to make the point of camper vans and overlanders and offroaders.
And a TD5 is already modern-ish enough, but very nice regardless! Personally, I would be at a loss working in anything built after the early 80s, so for a Defender that would be the dual-carb V8s, and 200/300 TDis.
My 1982 Range Rover has all of three fuses, so electrically I'm fine! Except the mess previous owners did to the original wiring... No idea why it is so difficult to just make your own wiring for after market accesories instead of butchering the OEM one up beyond recognition. It works, so I don't touch it. I have no idea why it works so...
Yeah I don't touch anything in the box beneath the passenger front seat ;) The previous owner thankfully already fixed the "oil creeps up the wires" issue, so I can leave it. Nothing I'm too keen on, but simple enough I figure.
> I have no idea why it works so...
I know that feeling haha. Adding wiring is so much easier than ripping up existing stuff ...
When a mechanic from Land Rover saw the wiring, he said something along the lines of "just fault location would be 2k, none of the colors I see should be there". A mess... But hey, the 80s and 90s were a wild time, and it is rust free!
> as soon as you have electronics and bus systems DIY basically requires deep car electronics knowledge and skills.
So how is this done on cars? Dores each manufacturer have their own proprietary bus system (what i imagine), or is there a standard that everyone can use?
Nah there’s been mandated standards since the 90s eg OBD I/II/III
Protocols like CAN, LIN, SENT and XCP are all standardised point to point and bus protocols for automotive stuff
I personally think the standardisation is actually a bit limiting[1]
Just like SpaceX found massive cost savings in using networking tech over hard wired interconnects, I think there’s a good chance China or other manufacturers might catch on
[1]I think interconnect failure rates are so low out of factory it’s not unethical to begin making things more lean, obviously with sufficient human safety testing
But I’m not an expert, just a former engineer working in an electronics shop…
And the past 12 V systems are dead easy to work on. On older cars that is, as soon as you have electronics and bus systems DIY basically requires deep car electronics knowledge and skills.