[Rhodes22-list] Zephyr - Fall 2021 / Spring 2022 projects

[Jesse Shumaker]

Hi Peter, thanks for your input.  I had looked into the issue you had
mentioned when I was researching early on.  Your question caused me to
start rethinking that some more.  I think it may be necessary to install an
alternator projection device or an archdiode battery isolator that I could
wire in a secondary small AGM battery simply to take the load in the
scenario where the BMS disconnects from the Lithium.  More to come on
that... I'll report back.  Thanks for your question.

Jesse

On Tue, Mar 8, 2022 at 10:17 AM Peter Nyberg <peter at sunnybeeches.com> wrote:

> Jesse,
>
> Very nicely done, both the projects themselves, and the write up.  I'm
> particularly interested in your switch to a LiFePO4 battery, and look
> forward to your report on your experience with it.
>
> One issue that I'm sure you are aware of, but didn't touch on is that the
> on-board battery management system (BMS) on these batteries can decide to
> stop accepting charging current.  Most commonly, this would happen when the
> battery reaches a fully charged state.  If the outboard is running, it
> would be the same as running it without a connection to a battery, which
> can damage the alternator (so I've read).  Have you done something to
> manage this potential situation?
>
> --Peter
>
>
>
>