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

[Jesse Shumaker]

As I dig a little deeper, it appears that it may be best to go to the
outboard to a small starter AGM starter battery first.  I have some more
digging to do on this so I'll let you know what I settle on.

On Tue, Mar 8, 2022 at 8:50 PM Jesse Shumaker <
jesse.laten.shumaker at gmail.com> wrote:

> 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
>>
>>
>>
>>