Bill: I have too many generator amps but not enough battery charge amps. A transformer will balance the generator but won’t increase charge amps.
William Miller Miller Solar.com 805-438-5600 www.millersolar.com On Fri, Nov 28, 2025 at 3:46 PM Bill P. Battagin via RE-wrenches < [email protected]> wrote: > William, > > Assuming the 12KW generator has 240 volt output, run the > 240V through a transformer and double your 120 volt amps. I guess if you > have a spare OB 3648 in the boneyard then you would be saving the cost of a > transformer. > > Bill > > Feather River Solar Electric > Bill Battagin, owner > 4291 Nelson St. (Freight) > 5575 Genesee Rd > <https://www.google.com/maps/search/5575+Genesee+Rd?entry=gmail&source=g>. > (USPS, UPS) > Taylorsville, CA 95983 > 530-284-7849, 258-1641(cell) > CA. C10 Lic # 874049 > Solar Powered since 1982 > > > ------------------------------ > *From: *"Jay via RE-wrenches" <[email protected]> > *To: *[email protected], "RE-wrenches" < > [email protected]> > *Cc: *"Jay" <[email protected]> > *Sent: *Friday, November 28, 2025 11:31:50 AM > *Subject: *Re: [RE-wrenches] FX Inverter as a dumb charger > > Hi william > > Yes I’ve done it many times without issues > > On Nov 28, 2025, at 11:41 AM, William Miller via RE-wrenches < > [email protected]> wrote: > > Friends: > > One of my clients has one VFXR3648A inverter connected to 8 L16 batteries. > We upgraded their generator to 12 kW. > > One leg of the generator is unloaded and the batteries can accept twice > the charge current one FX can provide. It seems another inverter is called > for. > > I have several functional VFXR3648 inverters on the shelf. I know I can > not mix versions of the inverter in the hub. Could I connect a VFX3648 to > the unused generator leg and battery bank but not the hub as a ‘dumb’ > charger? I would plug in a Mate just long enough to verify settings. > > Has anyone tried this? Thanks in advance for any advice. > > William Miller > Miller Solar.com > 805-438-5600 > www.millersolar.com > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > 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/[email protected]/ > 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 > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > 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/[email protected]/ > 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 > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > 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/[email protected]/ > 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 > >
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