[RE-wrenches] Paralleling two PF16 batteries on Midnite AIO

[Ray Walters]

I was told specifically by Midnite Tech support that the AIO was 
designed for parallel conductors. There isn't anything in the manual 
that contradicts that, that I'm aware of.

  I have never considered 2 lugs on a single bolt a violation. Its when 
two conductors go into a single lug that is not designed for 2 
conductors, that it's considered double lugging.  If 2 lugs on one bolt 
were not legal, how in the world would you ever wire L16s, golf cart 
batteries, etc. in parallel?

Ray Walters
Remote Solar

On 7/17/2025 3:50 PM, Jason Szumlanski via RE-wrenches wrote:
> This is an interesting option. I think it goes against the manual, 
> however, which could be flagged as a code violation.
>
> I also considered Polaris taps that are rated for fine-stranded wire.
>
>
> Jason Szumlanski
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
> Florida Certified Electrical Contractor EC13013208
>
>
> On Thu, Jul 17, 2025 at 11:41 AM Zeke Yewdall via RE-wrenches 
> <re-wrenches at lists.re-wrenches.org 
> <mailto:re-wrenches at lists.re-wrenches.org>> wrote:
>
>     I have done several systems where we just paralleled two
>     batteries on the battery terminals, just like we'd do with lead
>     acid batteries, with a reverse return for the home runs.  With the
>     active balancing, the reverse return is apparently not as
>     important, but I still think it's best practice.
>
>     MidNite Power is working on a custom gutter/wiring box for
>     coupling the PF16's directly to the AIO, but not sure on timeline
>     for it.  I've seen a few really nice installs where someone used a
>     standard 10" gutter with cutouts in it directly on top of the
>     PF16's, then set the AIO's on top of that.  No exposed wiring or
>     even conduit showing.
>
>     Zeke
>     -- 
>     Zeke Yewdall
>     PV Engineer
>     NABCEP #031508-89
>     zeke at darkforestsolar.com
>     303-523-3592
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