I’ve run into a bit of a design limitation with my Sigenergy setup and curious how others have solved it.

My SigenStor stack is installed outside under a pergola (which I actually think was the right call by the installer), but it’s roughly \~7m away from the carport. Once you factor in the way the DC cable has to route down and out of the stack and then back up, you realistically lose a couple of metres straight away.

From what I can tell:

The DC module only comes in **5m, 7m, or 10m cable options**

And **10m is basically the max supported length**  
Which means depending on where the charge port is on the car… I’m right on the edge (or over).

The frustrating part is even if I tried to go down a custom route, I don’t think it would physically fit anyway once you account for routing, bends, and slack. So it’s not just a “buy a longer cable” problem.

I’ve also spoken directly with Sigenergy about this:

They confirmed they **don’t offer longer cables** because voltage drop becomes too large

I asked whether they’d consider a **DC wall outlet / pass-through system** (so you could run your own compliant cabling through the house and terminate closer to the carport)

They said it was **an interesting idea and something they’d consider for future products**

I’m trying to future-proof for V2H/V2G because that’s honestly one of the main reasons I went Sigenergy in the first place. The idea of using the EV as part of the home energy system is too good to miss just because of physical layout.

So I’ve got a few questions for people who already have this setup:

Has anyone **exceeded the 10m limit** in any way (extensions, custom cabling, etc)?

Did the system accept it or just refuse to operate?

Has anyone relocated or repositioned the module after install to make it work?

Any creative solutions? (running through walls, conduit paths, mounting tricks, etc)

Or did you just give up and go AC charger instead?

I’ve seen one example where someone drilled through a wall and routed the cable through just to make the reach work, which is kind of where my head is going too, but even so I don’t think the route would make a difference. 

Right now my options seem to be:

Try to engineer a better cable path

Relocate hardware (painful)

Go AC charger and lose V2H (feels like a waste long term)

Keen to hear what others have actually done in the real world.

Sigenergy DC charger cable length issues – what are people actually doing?