[RE-wrenches] Charging 48V Battery with One Module

[wes kennedy]

I second the Genasun product line. I've done a few golf cart charging systems. works like a charm. 
-Wes Kennedy 303-653-3073 

    On Monday, April 12, 2021, 12:03:52 PM MDT, Mac Lewis <maclewis1 at gmail.com> wrote:  
 
 There is a company called Genasun that I believe makes a boost solar charge controller to do this.  They are in the marine world and I haven't poured over their specs but they are worth checking out.  
Try looking at 
Genasun GVB-8-Li
Good Luck!

On Mon, Apr 12, 2021 at 11:43 AM Jason Szumlanski <jason at floridasolardesigngroup.com> wrote:

I want to charge a 51.2V LiPO battery with a single 420W 72-cell module. Vmp is 40.14V. 
It's one of those situations where I just need a lot of battery capacity as a backup for a specified time period, but it doesn't matter how long it takes to charge it back up. And I have space for exactly one 72-cell module.
It's going to be a Victron inverter. I'm not sure if they make a DC-DC solution for this charging scenario or if there is another way to accomplish it without too much cost and complexity. I was half-heartedly thinking about an AC coupled microinverter, but that has drawbacks in terms of efficiency I think. Maybe that's not any worse than DC-DC conversion - I'm not sure. AC Coupling would probably be cheaper and easier. Monitoring might be difficult/limited. And AC coupling would require that the inverter be on (inverting) which isn't ideal for this situation either.
Thanks in advance,
Jason SzumlanskiFlorida Solar Design Group_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches at lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org




-- 



Mac Lewis


"Yo solo sé que no sé nada." -Sócrates
_______________________________________________
List sponsored by Redwood Alliance

List Address: RE-wrenches at lists.re-wrenches.org

Change listserver email address & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org

There are two list archives for searching. When one doesn't work, try the other:
https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org

List rules & etiquette:
http://www.re-wrenches.org/etiquette.htm

Check out or update participant bios:
http://www.members.re-wrenches.org

  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20210412/0ea1db27/attachment.htm>